Submission #1693982

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Source Code Expand

#include<iostream>
#include<algorithm>
#include<cstring>
 
using namespace std;
 
typedef long long int64;
 
int N, M;
int64 A[5001];
int B[5001][200];
int ans[200];
 
int main()
{
 
  scanf("%d %d", &N, &M);
  for(int i = 1; i < N; i++) {
    scanf("%lld", &A[i]);
    A[i] += A[i - 1];
  }
  for(int i = 0; i < N; i++) {
    for(int j = 0; j < M; j++) scanf("%d", &B[i][j]);
  }
 
  int64 ret = 0;
  for(int i = 0; i < N; i++) {
    memset(ans, 0, sizeof(ans));
    int64 res = 0;
    for(int j = i; j < N; j++) {
      for(int k = 0; k < M; k++) {
        if(ans[k] < B[j][k]) {
          res += B[j][k] - ans[k];
          ans[k] = B[j][k];
        }
      }
      ret = max(ret, res + A[i] - A[j]);
    }
  }
 
  printf("%lld\n", ret);
}

Submission Info

Compile Error

./Main.cpp: In function ‘int main()’:
./Main.cpp:17:25: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result]
   scanf("%d %d", &N, &M);
                         ^
./Main.cpp:19:25: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result]
     scanf("%lld", &A[i]);
                         ^
./Main.cpp:23:53: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result]
     for(int j = 0; j < M; j++) scanf("%d", &B[i][j]);
                                                     ^

Judge Result