Submission #1933775

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Source Code Expand

#define _USE_MATH_DEFINES
#include <cassert>
#include <cstdio>
#include <cstring>
#include <iostream>
#include <string>
#include <sstream>
#include <vector>
#include <queue>
#include <stack>
#include <list>
#include <set>
#include <map>
#include <unordered_set>
#include <unordered_map>
#include <algorithm>
#include <complex>
#include <cmath>
#include <numeric>
#include <bitset>
#include <functional>

using namespace std;

#define trace(...) __f(#__VA_ARGS__, __VA_ARGS__)
template <typename Arg1>
void __f(const char* name, Arg1&& arg1){
  cerr << name << ": " << arg1 << endl;
}
template <typename Arg1, typename... Args>
void __f(const char* names, Arg1&& arg1, Args&&... args){
  const char* comma = strchr(names + 1, ',');
  cerr.write(names, comma - names) << ": " << arg1 << " |";
  __f(comma + 1, args...);
}

typedef long long int64;
typedef pair<int, int> ii;
const int INF = 1 << 29;
const int MOD = 1e9 + 7;

const int N = 300 + 10;
char s[N][N];
int cost[N][N], dp[N][N];
int n, m;

int solve(int x, int y) {
  for (int i = 0; i <= n; ++i) {
    for (int j = 0; j <= n; ++j) {
      if (i == 0 || j == 0) {
        cost[i][j] = 0;
      } else {
        cost[i][j] = cost[i - 1][j - 1] +
          (s[i - 1][x] == s[j - 1][y]);
      }
    }
  }
  for (int i = 0; i <= n; ++i) {
    for (int j = 0; j <= n; ++j) {
      if (i == 0 || j == 0) {
        dp[i][j] = 0;
      } else {
        dp[i][j] = cost[i][j] + min(dp[i - 1][j], dp[i][j - 1]);
      }
    }
  }
  return dp[n][n];
}

int main() {
  scanf("%d%d", &n, &m);
  for (int i = 0; i < n; ++i) {
    scanf("%s", s[i]);
  }
  int ret = 0;
  for (int i = 1; i < m; ++i) {
    ret += solve(i - 1, i);
  }
  printf("%d\n", ret);
  return 0;
}

Submission Info

Compile Error

./Main.cpp: In function ‘int main()’:
./Main.cpp:71:24: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result]
   scanf("%d%d", &n, &m);
                        ^
./Main.cpp:73:22: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result]
     scanf("%s", s[i]);
                      ^

Judge Result