func_code_string: #include <bits/stdc++.h>   using namespace std;   int dp[110][110];   int main() {     int n, v;     cin >> n >> v;     for (int i = 1; i <= v; i++) dp[1][i] = i;     for (int i = 2; i <= n; i++) {       for (int j = 0; j < v; j++) {         dp[i][j] = min(dp[i - 1][j + 1], dp[i - 1][j] + i);       }       dp[i][v] = dp[i - 1][v] + i;     }     int ans = 1000000000;     for (int i = 0; i < v + 1; i++) ans = min(ans, dp[n][i]);     cout << ans;     return 0;   }   