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-rw-r--r--PlaygroundCpp/Sources/Playground.cpp92
1 files changed, 47 insertions, 45 deletions
diff --git a/PlaygroundCpp/Sources/Playground.cpp b/PlaygroundCpp/Sources/Playground.cpp
index 8c8b854..e402792 100644
--- a/PlaygroundCpp/Sources/Playground.cpp
+++ b/PlaygroundCpp/Sources/Playground.cpp
@@ -5,61 +5,63 @@
using std::vector;
-int lcs2(vector<int> &a, vector<int> &b) {
+int lcs3(vector<int> &a, vector<int> &b, vector<int> &c) {
+ int l = c.size();
int m = b.size();
int n = a.size();
- int D[n + 1][m + 1];
- for (int j = 0; j < m + 1; j++) {
- for (int i = 0; i < n + 1; i++) {
- // Initialize row/column 0 to 0 is necessary!
- if (i == 0 || j == 0) {
- D[i][j] = 0;
- continue;
- }
- if (a.at(i - 1) == b.at(j - 1)) {
- D[i][j] = D[i - 1][j - 1] + 1;
- } else {
- D[i][j] = std::max(D[i - 1][j], D[i][j - 1]);
+ int D[n + 1][m + 1][l + 1];
+ for (int k = 0; k < l + 1; k++) {
+ for (int j = 0; j < m + 1; j++) {
+ for (int i = 0; i < n + 1; i++) {
+ if (i == 0 || j == 0 || k == 0) {
+ D[i][j][k] = 0;
+ continue;
+ }
+ if (a[i - 1] == b[j - 1] && b[j - 1] == c[k - 1]) {
+ D[i][j][k] = D[i - 1][j - 1][k - 1] + 1;
+ } else {
+ D[i][j][k] = std::max(D[i - 1][j][k],
+ std::max(D[i][j - 1][k], D[i][j][k - 1]));
+ }
}
}
}
- return D[n][m];
+ return D[n][m][l];
}
-//TEST(LCS2, t1) {
-// vector<int> a = { 2, 7, 5 };
-// vector<int> b = { 2, 5 };
-// ASSERT_EQ(2, lcs2(a, b));
-//}
-//
-//TEST(LCS2, t2) {
-// vector<int> a = { 1, 9, 2, 5, 5, 5, 8, 3, 5, 11, 0, 2, 4, 1, 7, 4, 5, 9, 2,
-// 4, 0, 3, 1, 5, 8, 3, 5, 9, 7, 8, 4, 5, 6, 7 };
-// vector<int> b = { 6, 3, 8, 3, 1, 8, 3, 5, 0, 9, 6, 8, 3, 5, 7, 9, 1, 4, 7,
-// 9, 3, 5, 9, 0, 1, 4, 2, 7, 5, 8, 9, 3, 5, 6, 1, 6, 3, 1, 6, 7, 3 };
-// ASSERT_EQ(17, lcs2(a, b));
+//TEST(LCS3, t1) {
+// vector<int> a = { 1, 2, 3 };
+// vector<int> b = { 2, 1, 3 };
+// vector<int> c = { 1, 3, 5 };
+// ASSERT_EQ(2, lcs3(a, b, c));
//}
//
-//TEST(LCS2, t3) {
-// vector<int> a = { 1, 2, 3 };
-// vector<int> b = { 3, 2, 1 };
-// ASSERT_EQ(1, lcs2(a, b));
+//TEST(LCS3, t2) {
+// vector<int> a = { 8, 3, 2, 1, 7 };
+// vector<int> b = { 8, 2, 1, 3, 8, 10, 7 };
+// vector<int> c = { 6, 8, 3, 1, 4, 7 };
+// ASSERT_EQ(3, lcs3(a, b, c));
//}
int main() {
- size_t n;
- std::cin >> n;
- vector<int> a(n);
- for (size_t i = 0; i < n; i++) {
- std::cin >> a[i];
- }
-
- size_t m;
- std::cin >> m;
- vector<int> b(m);
- for (size_t i = 0; i < m; i++) {
- std::cin >> b[i];
- }
-
- std::cout << lcs2(a, b) << std::endl;
+ size_t an;
+ std::cin >> an;
+ vector<int> a(an);
+ for (size_t i = 0; i < an; i++) {
+ std::cin >> a[i];
+ }
+ size_t bn;
+ std::cin >> bn;
+ vector<int> b(bn);
+ for (size_t i = 0; i < bn; i++) {
+ std::cin >> b[i];
+ }
+ size_t cn;
+ std::cin >> cn;
+ vector<int> c(cn);
+ for (size_t i = 0; i < cn; i++) {
+ std::cin >> c[i];
+ }
+ std::cout << lcs3(a, b, c) << std::endl;
}
+