Submission #1156269

#	Time	Username	Problem	Language	Result	Execution time	Memory
1156269		AI_2512	Divide and conquer (IZhO14_divide)	C++17	0 / 100	2 ms	320 KiB

divide

#include <bits/stdc++.h>
#define int long long
#define ss second
#define ff first
using namespace std;
signed main(){
    ios_base::sync_with_stdio(false);
    cin.tie(NULL);
    cout.tie(NULL);
    freopen("input.txt", "r", stdin);
    freopen("output.txt", "w", stdout);
    int n;cin >> n;
    vector<pair<int,pair<int,int>>> a(n);
    for (int i = 0; i< n;i++) cin >> a[i].ff >> a[i].ss.ff >> a[i].ss.ss;
    int mx = 0;
    for (int i =0 ; i< n;i++){
        mx = max(mx, a[i].ss.ff);
    }
    int l = 0, r = 0;
    int curg = 0, cure = 0;
    while (r < n){
        curg+=a[r].ss.ff;
        cure+=a[r].ss.ss;
        if (cure < a[r].ff-a[l].ff){
            mx = max(mx, curg-a[r].ss.ff);
            while (cure < a[r].ff-a[l].ff){
                curg-=a[l].ss.ff;
                cure-=a[l].ss.ss;
                l--;
            }
        }
        r++;
    }
    cout  << mx;
}

Compilation message (stderr)

divide.cpp: In function 'int main()':
divide.cpp:10:12: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)' declared with attribute 'warn_unused_result' [-Wunused-result]
   10 |     freopen("input.txt", "r", stdin);
      |     ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~
divide.cpp:11:12: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)' declared with attribute 'warn_unused_result' [-Wunused-result]
   11 |     freopen("output.txt", "w", stdout);
      |     ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~

• Subtask 1: 0 / 17
• Subtask 2: 0 / 31
• Subtask 3: 0 / 52