Submission #413218

#	Time	Username	Problem	Language	Result	Execution time	Memory
413218		aris12345678	Maxcomp (info1cup18_maxcomp)	C++14	100 / 100	157 ms	17032 KiB

maxcomp

#include <bits/stdc++.h>
using namespace std;

const int mxN = 1e3+5;
int a[mxN][mxN], dp[mxN][mxN];

int main() {
    int n, m;
    scanf("%d %d", &n, &m);
    for(int i = 0; i < n; i++) {
        for(int j = 0; j < m; j++) {
            scanf("%d", &a[i][j]);
        }
    }
    for(int i = 0; i < n; i++) {
        for(int j = 0; j < m; j++) {
            dp[i][j] = a[i][j]-1;
            if(i > 0)
                dp[i][j] = max(dp[i][j], dp[i-1][j]-1);
            if(j > 0)
                dp[i][j] = max(dp[i][j], dp[i][j-1]-1);
        }
    }
    for(int i = n-1; i >= 0; i--) {
        for(int j = m-1; j >= 0; j--) {
            if(i < n-1)
                dp[i][j] = max(dp[i][j], dp[i+1][j]-1);
            if(j < m-1)
                dp[i][j] = max(dp[i][j], dp[i][j+1]-1);
        }
    }
    int ans = -1;
    for(int i = 0; i < n; i++) {
        for(int j = 0; j < m; j++) {
            ans = max(ans, dp[i][j]-a[i][j]);
        }
    }
    printf("%d\n", ans);
    return 0;
}

Compilation message (stderr)

maxcomp.cpp: In function 'int main()':
maxcomp.cpp:9:10: warning: ignoring return value of 'int scanf(const char*, ...)' declared with attribute 'warn_unused_result' [-Wunused-result]
    9 |     scanf("%d %d", &n, &m);
      |     ~~~~~^~~~~~~~~~~~~~~~~
maxcomp.cpp:12:18: warning: ignoring return value of 'int scanf(const char*, ...)' declared with attribute 'warn_unused_result' [-Wunused-result]
   12 |             scanf("%d", &a[i][j]);
      |             ~~~~~^~~~~~~~~~~~~~~~

• Subtask 1: 15 / 15
• Subtask 2: 15 / 15
• Subtask 3: 30 / 30
• Subtask 4: 40 / 40