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-rw-r--r--src/main/SetRangeSum.java49
-rw-r--r--src/test/SetRangeSumTest.java154
2 files changed, 184 insertions, 19 deletions
diff --git a/src/main/SetRangeSum.java b/src/main/SetRangeSum.java
index 8c75189..0d01382 100644
--- a/src/main/SetRangeSum.java
+++ b/src/main/SetRangeSum.java
@@ -8,6 +8,7 @@ public class SetRangeSum {
StringTokenizer st;
boolean eof;
+ // int last_sum_result = 0;
long last_sum_result = 0;
// Splay tree implementation
@@ -190,47 +191,57 @@ public class SetRangeSum {
}
void erase(int x) {
- // Implement erase yourself
+ if (find(x)) {
+ root = merge(root.left, root.right);
+ if (root != null)
+ root.parent = null;
+ return;
+ }
+ }
+
+ boolean find(int x) {
+ if (root != null && root.key == x) return true;
Vertex left = null;
Vertex right = null;
- Vertex new_vertex = null;
VertexPair leftRight = split(root, x);
left = leftRight.left;
right = leftRight.right;
-
- if (right == null) return;
-
- new_vertex = right.right;
- root = merge(left, new_vertex);
-
- }
-
- boolean find(int x) {
- // Implement find yourself
- VertexPair vertexPair = find(root, x);
- if (vertexPair.left == null) return false;
- if (vertexPair.left.key == x)
- return true;
- else return false;
+ if (right == null || right.key != x) {
+ root = merge(left, right);
+ if (right == null)
+ root = splay(left);
+ else
+ root = splay(right);
+ return false;
+ }
+ root = merge(left, right);
+ root = splay(right);
+ return true;
}
long sum(int from, int to) {
+ long ans = 0;
VertexPair leftMiddle = split(root, from);
Vertex left = leftMiddle.left;
Vertex middle = leftMiddle.right;
VertexPair middleRight = split(middle, to + 1);
middle = middleRight.left;
Vertex right = middleRight.right;
- long ans = 0;
if (left != null && left.key >= from && left.key <= to)
ans = ans + left.sum;
+// ans = ans + left.key;
+// if (middle != null)
if (middle != null && middle.key >= from && middle.key <= to)
ans = ans + middle.sum;
if (right != null && right.key >= from && right.key <= to)
ans = ans + right.sum;
+// ans = ans + right.key;
+ root = merge(merge(left, middle), right);
+// last_sum_result = (int) (ans % MODULO);
last_sum_result = ans;
return ans;
+// return last_sum_result;
}
@@ -261,7 +272,7 @@ public class SetRangeSum {
int r = nextInt();
long res = sum((int) (l + last_sum_result) % MODULO, (int) (r + last_sum_result) % MODULO);
out.println(res);
- last_sum_result = (res % MODULO);
+ last_sum_result = (int) (res % MODULO);
}
}
}
diff --git a/src/test/SetRangeSumTest.java b/src/test/SetRangeSumTest.java
new file mode 100644
index 0000000..60cd5df
--- /dev/null
+++ b/src/test/SetRangeSumTest.java
@@ -0,0 +1,154 @@
+import org.junit.jupiter.api.Test;
+
+import static org.junit.jupiter.api.Assertions.*;
+
+public class SetRangeSumTest {
+ @Test
+ void test1() {
+ SetRangeSum setRangeSum = new SetRangeSum();
+
+ assertFalse(setRangeSum.find((int) ((1 + setRangeSum.last_sum_result) % SetRangeSum.MODULO)));
+ setRangeSum.insert((int) ((1 + setRangeSum.last_sum_result) % SetRangeSum.MODULO));
+ assertTrue(setRangeSum.find((int) ((1 + setRangeSum.last_sum_result) % SetRangeSum.MODULO)));
+ setRangeSum.insert((int) ((2 + setRangeSum.last_sum_result) % SetRangeSum.MODULO));
+ assertEquals(3, setRangeSum.sum((int) (1 + setRangeSum.last_sum_result) % SetRangeSum.MODULO, (int) (2 + setRangeSum.last_sum_result) % SetRangeSum.MODULO));
+ setRangeSum.insert((int) ((1000000000 + setRangeSum.last_sum_result) % SetRangeSum.MODULO));
+ assertTrue(setRangeSum.find((int) ((1000000000 + setRangeSum.last_sum_result) % SetRangeSum.MODULO)));
+ setRangeSum.erase((int) ((1000000000 + setRangeSum.last_sum_result) % SetRangeSum.MODULO));
+ assertFalse(setRangeSum.find((int) ((1000000000 + setRangeSum.last_sum_result) % SetRangeSum.MODULO)));
+ assertEquals(1, setRangeSum.sum((int) (999999999 + setRangeSum.last_sum_result) % SetRangeSum.MODULO, (int) (1000000000 + setRangeSum.last_sum_result) % SetRangeSum.MODULO));
+ setRangeSum.erase((int) ((2 + setRangeSum.last_sum_result) % SetRangeSum.MODULO));
+ assertFalse(setRangeSum.find((int) ((2 + setRangeSum.last_sum_result) % SetRangeSum.MODULO)));
+ setRangeSum.erase((int) ((0 + setRangeSum.last_sum_result) % SetRangeSum.MODULO));
+ setRangeSum.insert((int) ((9 + setRangeSum.last_sum_result) % SetRangeSum.MODULO));
+ assertEquals(10, setRangeSum.sum((int) (0 + setRangeSum.last_sum_result) % SetRangeSum.MODULO, (int) (9 + setRangeSum.last_sum_result) % SetRangeSum.MODULO));
+ }
+
+ @Test
+ void test2() {
+ SetRangeSum setRangeSum = new SetRangeSum();
+
+ assertFalse(setRangeSum.find((int) ((0 + setRangeSum.last_sum_result) % SetRangeSum.MODULO)));
+ setRangeSum.insert((int) ((0 + setRangeSum.last_sum_result) % SetRangeSum.MODULO));
+ assertTrue(setRangeSum.find((int) ((0 + setRangeSum.last_sum_result) % SetRangeSum.MODULO)));
+ setRangeSum.erase((int) ((0 + setRangeSum.last_sum_result) % SetRangeSum.MODULO));
+ assertFalse(setRangeSum.find((int) ((0 + setRangeSum.last_sum_result) % SetRangeSum.MODULO)));
+ }
+
+ @Test
+ void test3() {
+ SetRangeSum setRangeSum = new SetRangeSum();
+
+ setRangeSum.insert((int) ((491572259 + setRangeSum.last_sum_result) % SetRangeSum.MODULO));
+ assertTrue(setRangeSum.find((int) ((491572259 + setRangeSum.last_sum_result) % SetRangeSum.MODULO)));
+ assertFalse(setRangeSum.find((int) ((899375874 + setRangeSum.last_sum_result) % SetRangeSum.MODULO)));
+ assertEquals(491572259, setRangeSum.sum((int) (310971296 + setRangeSum.last_sum_result) % SetRangeSum.MODULO, (int) (877523306 + setRangeSum.last_sum_result) % SetRangeSum.MODULO));
+ setRangeSum.insert((int) ((352411209 + setRangeSum.last_sum_result) % SetRangeSum.MODULO));
+ }
+
+ @Test
+ void testGraderCase5() {
+ SetRangeSum setRangeSum = new SetRangeSum();
+
+ assertEquals(0, setRangeSum.sum((int) (88127140 + setRangeSum.last_sum_result) % SetRangeSum.MODULO, (int) (859949755 + setRangeSum.last_sum_result) % SetRangeSum.MODULO));
+ assertEquals(0, setRangeSum.sum((int) (407584225 + setRangeSum.last_sum_result) % SetRangeSum.MODULO, (int) (906606553 + setRangeSum.last_sum_result) % SetRangeSum.MODULO));
+ setRangeSum.insert((int) ((885530090 + setRangeSum.last_sum_result) % SetRangeSum.MODULO));
+ setRangeSum.insert((int) ((234423189 + setRangeSum.last_sum_result) % SetRangeSum.MODULO));
+ assertEquals(234423189, setRangeSum.sum((int) (30746291 + setRangeSum.last_sum_result) % SetRangeSum.MODULO, (int) (664192454 + setRangeSum.last_sum_result) % SetRangeSum.MODULO));
+ setRangeSum.insert((int) ((465752492 + setRangeSum.last_sum_result) % SetRangeSum.MODULO));
+ assertEquals(934598870, setRangeSum.sum((int) (848498590 + setRangeSum.last_sum_result) % SetRangeSum.MODULO, (int) (481606032 + setRangeSum.last_sum_result) % SetRangeSum.MODULO));
+ }
+
+ @Test
+ void testAchievingBetterUnderstanding() {
+ SetRangeSum setRangeSum = new SetRangeSum();
+
+ setRangeSum.insert((int) ((7 + setRangeSum.last_sum_result) % SetRangeSum.MODULO));
+ assertTrue(setRangeSum.find((int) ((7 + setRangeSum.last_sum_result) % SetRangeSum.MODULO)));
+ setRangeSum.insert((int) ((7 + setRangeSum.last_sum_result) % SetRangeSum.MODULO));
+ assertTrue(setRangeSum.find((int) ((7 + setRangeSum.last_sum_result) % SetRangeSum.MODULO)));
+ setRangeSum.insert((int) ((3 + setRangeSum.last_sum_result) % SetRangeSum.MODULO));
+ assertTrue(setRangeSum.find((int) ((3 + setRangeSum.last_sum_result) % SetRangeSum.MODULO)));
+ assertTrue(setRangeSum.find((int) ((3 + setRangeSum.last_sum_result) % SetRangeSum.MODULO)));
+ assertEquals(3, setRangeSum.sum((int) (3 + setRangeSum.last_sum_result) % SetRangeSum.MODULO, (int) (3 + setRangeSum.last_sum_result) % SetRangeSum.MODULO));
+ }
+
+ @Test
+ void testGraderCase20() {
+ SetRangeSum setRangeSum = new SetRangeSum();
+
+ assertEquals(0, setRangeSum.sum((int) (40279559 + setRangeSum.last_sum_result) % SetRangeSum.MODULO, (int) (89162572 + setRangeSum.last_sum_result) % SetRangeSum.MODULO));
+ setRangeSum.erase((int) ((774613289 + setRangeSum.last_sum_result) % SetRangeSum.MODULO));
+ assertEquals(0, setRangeSum.sum((int) (869592654 + setRangeSum.last_sum_result) % SetRangeSum.MODULO, (int) (915517087 + setRangeSum.last_sum_result) % SetRangeSum.MODULO));
+ setRangeSum.erase((int) ((165280355 + setRangeSum.last_sum_result) % SetRangeSum.MODULO));
+ setRangeSum.erase((int) ((776346290 + setRangeSum.last_sum_result) % SetRangeSum.MODULO));
+ setRangeSum.erase((int) ((221187096 + setRangeSum.last_sum_result) % SetRangeSum.MODULO));
+ assertEquals(0, setRangeSum.sum((int) (421986248 + setRangeSum.last_sum_result) % SetRangeSum.MODULO, (int) (742826969 + setRangeSum.last_sum_result) % SetRangeSum.MODULO));
+ assertEquals(0, setRangeSum.sum((int) (83228103 + setRangeSum.last_sum_result) % SetRangeSum.MODULO, (int) (852190011 + setRangeSum.last_sum_result) % SetRangeSum.MODULO));
+ setRangeSum.erase((int) ((640319482 + setRangeSum.last_sum_result) % SetRangeSum.MODULO));
+ assertFalse(setRangeSum.find((int) ((528689193 + setRangeSum.last_sum_result) % SetRangeSum.MODULO)));
+ assertFalse(setRangeSum.find((int) ((75245219 + setRangeSum.last_sum_result) % SetRangeSum.MODULO)));
+ setRangeSum.erase((int) ((617070033 + setRangeSum.last_sum_result) % SetRangeSum.MODULO));
+ setRangeSum.insert((int) ((66257759 + setRangeSum.last_sum_result) % SetRangeSum.MODULO));
+ assertEquals(66257759, setRangeSum.sum((int) (25751289 + setRangeSum.last_sum_result) % SetRangeSum.MODULO, (int) (70170547 + setRangeSum.last_sum_result) % SetRangeSum.MODULO));
+ assertEquals(0, setRangeSum.sum((int) (28248247 + setRangeSum.last_sum_result) % SetRangeSum.MODULO, (int) (617849094 + setRangeSum.last_sum_result) % SetRangeSum.MODULO));
+ setRangeSum.erase((int) ((954357244 + setRangeSum.last_sum_result) % SetRangeSum.MODULO));
+ setRangeSum.insert((int) ((477444954 + setRangeSum.last_sum_result) % SetRangeSum.MODULO));
+ assertFalse(setRangeSum.find((int) ((608389416 + setRangeSum.last_sum_result) % SetRangeSum.MODULO)));
+ assertEquals(0, setRangeSum.sum((int) (400483980 + setRangeSum.last_sum_result) % SetRangeSum.MODULO, (int) (423330836 + setRangeSum.last_sum_result) % SetRangeSum.MODULO));
+ setRangeSum.erase((int) ((477444954 + setRangeSum.last_sum_result) % SetRangeSum.MODULO));
+ assertFalse(setRangeSum.find((int) ((441393551 + setRangeSum.last_sum_result) % SetRangeSum.MODULO)));
+ assertEquals(66257759, setRangeSum.sum((int) (66257759 + setRangeSum.last_sum_result) % SetRangeSum.MODULO, (int) (66257759 + setRangeSum.last_sum_result) % SetRangeSum.MODULO));
+ setRangeSum.erase((int) ((822218158 + setRangeSum.last_sum_result) % SetRangeSum.MODULO));
+ assertFalse(setRangeSum.find((int) ((806479414 + setRangeSum.last_sum_result) % SetRangeSum.MODULO)));
+ assertEquals(0, setRangeSum.sum((int) (548665149 + setRangeSum.last_sum_result) % SetRangeSum.MODULO, (int) (925635534 + setRangeSum.last_sum_result) % SetRangeSum.MODULO));
+ assertEquals(66257759, setRangeSum.sum((int) (66257759 + setRangeSum.last_sum_result) % SetRangeSum.MODULO, (int) (66257759 + setRangeSum.last_sum_result) % SetRangeSum.MODULO));
+ assertFalse(setRangeSum.find((int) ((234121006 + setRangeSum.last_sum_result) % SetRangeSum.MODULO)));
+ setRangeSum.insert((int) ((663305907 + setRangeSum.last_sum_result) % SetRangeSum.MODULO));
+ assertEquals(729563666, setRangeSum.sum((int) (314809050 + setRangeSum.last_sum_result) % SetRangeSum.MODULO, (int) (685231317 + setRangeSum.last_sum_result) % SetRangeSum.MODULO));
+ setRangeSum.erase((int) ((0 + setRangeSum.last_sum_result) % SetRangeSum.MODULO));
+ assertEquals(0, setRangeSum.sum((int) (487458874 + setRangeSum.last_sum_result) % SetRangeSum.MODULO, (int) (602635501 + setRangeSum.last_sum_result) % SetRangeSum.MODULO));
+ assertEquals(66257759, setRangeSum.sum((int) (66257759 + setRangeSum.last_sum_result) % SetRangeSum.MODULO, (int) (66257759 + setRangeSum.last_sum_result) % SetRangeSum.MODULO));
+ assertFalse(setRangeSum.find((int) ((918193520 + setRangeSum.last_sum_result) % SetRangeSum.MODULO)));
+ assertFalse(setRangeSum.find((int) ((606474691 + setRangeSum.last_sum_result) % SetRangeSum.MODULO)));
+ assertEquals(0, setRangeSum.sum((int) (188185089 + setRangeSum.last_sum_result) % SetRangeSum.MODULO, (int) (774086933 + setRangeSum.last_sum_result) % SetRangeSum.MODULO));
+ setRangeSum.erase((int) ((322445571 + setRangeSum.last_sum_result) % SetRangeSum.MODULO));
+ assertEquals(66257759, setRangeSum.sum((int) (66257759 + setRangeSum.last_sum_result) % SetRangeSum.MODULO, (int) (66257759 + setRangeSum.last_sum_result) % SetRangeSum.MODULO));
+ setRangeSum.erase((int) ((814123984 + setRangeSum.last_sum_result) % SetRangeSum.MODULO));
+ assertEquals(66257759, setRangeSum.sum((int) (0 + setRangeSum.last_sum_result) % SetRangeSum.MODULO, (int) (0 + setRangeSum.last_sum_result) % SetRangeSum.MODULO));
+ assertEquals(66257759, setRangeSum.sum((int) (0 + setRangeSum.last_sum_result) % SetRangeSum.MODULO, (int) (0 + setRangeSum.last_sum_result) % SetRangeSum.MODULO));
+ assertEquals(0, setRangeSum.sum((int) (689260392 + setRangeSum.last_sum_result) % SetRangeSum.MODULO, (int) (827869844 + setRangeSum.last_sum_result) % SetRangeSum.MODULO));
+ assertFalse(setRangeSum.find((int) ((204276815 + setRangeSum.last_sum_result) % SetRangeSum.MODULO)));
+ setRangeSum.erase((int) ((66257759 + setRangeSum.last_sum_result) % SetRangeSum.MODULO));
+ assertFalse(setRangeSum.find((int) ((488766408 + setRangeSum.last_sum_result) % SetRangeSum.MODULO)));
+ assertEquals(0, setRangeSum.sum((int) (412617563 + setRangeSum.last_sum_result) % SetRangeSum.MODULO, (int) (631410280 + setRangeSum.last_sum_result) % SetRangeSum.MODULO));
+ setRangeSum.erase((int) ((463415495 + setRangeSum.last_sum_result) % SetRangeSum.MODULO));
+ setRangeSum.insert((int) ((601030115 + setRangeSum.last_sum_result) % SetRangeSum.MODULO));
+ assertFalse(setRangeSum.find((int) ((776513589 + setRangeSum.last_sum_result) % SetRangeSum.MODULO)));
+ assertEquals(601030115, setRangeSum.sum((int) (257003372 + setRangeSum.last_sum_result) % SetRangeSum.MODULO, (int) (887483600 + setRangeSum.last_sum_result) % SetRangeSum.MODULO));
+ setRangeSum.insert((int) ((154047223 + setRangeSum.last_sum_result) % SetRangeSum.MODULO));
+ assertTrue(setRangeSum.find((int) ((154047223 + setRangeSum.last_sum_result) % SetRangeSum.MODULO)));
+ assertFalse(setRangeSum.find((int) ((219327735 + setRangeSum.last_sum_result) % SetRangeSum.MODULO)));
+ setRangeSum.insert((int) ((978812473 + setRangeSum.last_sum_result) % SetRangeSum.MODULO));
+ assertEquals(1935950040, setRangeSum.sum((int) (978812473 + setRangeSum.last_sum_result) % SetRangeSum.MODULO, (int) (154047223 + setRangeSum.last_sum_result) % SetRangeSum.MODULO));
+ assertFalse(setRangeSum.find((int) ((718062555 + setRangeSum.last_sum_result) % SetRangeSum.MODULO)));
+ assertFalse(setRangeSum.find((int) ((128066784 + setRangeSum.last_sum_result) % SetRangeSum.MODULO)));
+ setRangeSum.erase((int) ((15718305 + setRangeSum.last_sum_result) % SetRangeSum.MODULO));
+ assertFalse(setRangeSum.find((int) ((754978417 + setRangeSum.last_sum_result) % SetRangeSum.MODULO)));
+ assertEquals(1935950040, setRangeSum.sum((int) ((643892549 + setRangeSum.last_sum_result) % SetRangeSum.MODULO), (int) ((819127300 + setRangeSum.last_sum_result) % SetRangeSum.MODULO)));
+// assertEquals(1935950040, setRangeSum.sum((int) (643892549 + setRangeSum.last_sum_result) % SetRangeSum.MODULO, (int) (819127300 + setRangeSum.last_sum_result) % SetRangeSum.MODULO));
+ assertFalse(setRangeSum.find((int) ((192401474 + setRangeSum.last_sum_result) % SetRangeSum.MODULO)));
+ assertTrue(setRangeSum.find((int) ((643892549 + setRangeSum.last_sum_result) % SetRangeSum.MODULO)));
+ setRangeSum.insert((int) ((638898307 + setRangeSum.last_sum_result) % SetRangeSum.MODULO));
+ assertFalse(setRangeSum.find((int) ((973173529 + setRangeSum.last_sum_result) % SetRangeSum.MODULO)));
+ setRangeSum.insert((int) ((506709268 + setRangeSum.last_sum_result) % SetRangeSum.MODULO));
+ setRangeSum.erase((int) ((506709268 + setRangeSum.last_sum_result) % SetRangeSum.MODULO));
+ setRangeSum.insert((int) ((744166533 + setRangeSum.last_sum_result) % SetRangeSum.MODULO));
+ setRangeSum.erase((int) ((638898307 + setRangeSum.last_sum_result) % SetRangeSum.MODULO));
+ setRangeSum.insert((int) ((95240753 + setRangeSum.last_sum_result) % SetRangeSum.MODULO));
+ assertEquals(0, setRangeSum.sum((int) ((997348833 + setRangeSum.last_sum_result) % SetRangeSum.MODULO), (int) ((63778002 + setRangeSum.last_sum_result) % SetRangeSum.MODULO)));
+ assertTrue(setRangeSum.find((int) ((31190791 + setRangeSum.last_sum_result) % SetRangeSum.MODULO)));
+ assertEquals(31190791, setRangeSum.sum((int) (21011834 + setRangeSum.last_sum_result) % SetRangeSum.MODULO, (int) (570648768 + setRangeSum.last_sum_result) % SetRangeSum.MODULO));
+ }
+
+}
generated by cgit v1.2.3 (git 2.25.1) at 2024-11-21 23:04:18 +0000