Submission #497087

#	Time	Username	Problem	Language	Result	Execution time	Memory
497087		kingline	Maxcomp (info1cup18_maxcomp)	C++17	60 / 100	1093 ms	15880 KiB

maxcomp

#include <bits/stdc++.h>
#pragma GCC optimize ("unroll-loops,Ofast,O3")
#pragma GCC target("avx,avx2,fma")
#define pii pair < int, int >

using namespace std;

int n, m, c[1005][1005];
pair < int, pii > v[1000005];

main() {
    //file("pieaters");
    /*ios_base::sync_with_stdio(0);
    cin.tie(0);
    cout.tie(0);*/
    //cin >> n >> m;
    scanf("%d%d", &n, &m);
    int num = 1;
    for(int i = 1; i <= n; i++) {
        for(int j = 1; j <= m; j++) {
            //cin >> c[i][j];
            scanf("%d", &c[i][j]);
            v[num] = {c[i][j], {i, j}};
            num++;
        }
    }
    sort(v + 1, v + n * m + 1);
    int ans = -1;
    for(int i = n * m; i > 0; i--) {
        for(int j = i - 1; j > 0; j--) {
            ans = max(ans, v[i].first - v[j].first - abs(v[i].second.first - v[j].second.first) - abs(v[i].second.second - v[j].second.second) - 1);
        }
    }
    printf("%d", ans);
}

Compilation message (stderr)

maxcomp.cpp:11:1: warning: ISO C++ forbids declaration of 'main' with no type [-Wreturn-type]
   11 | main() {
      | ^~~~
maxcomp.cpp: In function 'int main()':
maxcomp.cpp:17:10: warning: ignoring return value of 'int scanf(const char*, ...)' declared with attribute 'warn_unused_result' [-Wunused-result]
   17 |     scanf("%d%d", &n, &m);
      |     ~~~~~^~~~~~~~~~~~~~~~
maxcomp.cpp:22:18: warning: ignoring return value of 'int scanf(const char*, ...)' declared with attribute 'warn_unused_result' [-Wunused-result]
   22 |             scanf("%d", &c[i][j]);
      |             ~~~~~^~~~~~~~~~~~~~~~

• Subtask 1: 15 / 15
• Subtask 2: 15 / 15
• Subtask 3: 30 / 30
• Subtask 4: 0 / 40