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#include <iostream> #include <cstring> #include <vector> #include <set> using namespace std; string A, B; int dp[1005][1005]; int rec(int i, int j) { if(i == -1 and j == -1) { return 0; } if(i == -1) { return j + 1; } if(j == -1) { return i + 1; } if(dp[i][j] != -1) { return dp[i][j]; } int result = 2e9; if(A[i] == B[j]) { result = min(result, rec(i - 1, j - 1) + 1); } result = min(result, rec(i - 1, j) + 1); result = min(result, rec(i, j - 1) + 1); return dp[i][j] = result; } int combinations(int i, int j) { } int main() { cin >> A >> B; memset(dp, -1, sizeof dp); cout << rec((int) A.size() - 1, (int) B.size() - 1) << endl;; return 0; } /* ABB BA **/
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