Submission #1276875

#	Time	Username	Problem	Language	Result	Execution time	Memory
1276875		LmaoLmao	Art Exhibition (JOI18_art)	C++20	0 / 100	1095 ms	332 KiB

art

#include<bits/stdc++.h>
#define fi first
#define se second
#define int long long
using namespace std;

using ll = long long;
using ii = pair<int, int>;
using aa = array<int,3>;

const int N = 5e5+5;
const int INF = 1e9;
const int MOD = 998244353;  

ii a[N];
int pre[N]; 

signed main()
{   
    ios_base::sync_with_stdio(false); 
    cin.tie(NULL);cout.tie(NULL);
    #ifndef ONLINE_JUDGE
    freopen("in.txt", "r", stdin);
    freopen("out.txt", "w", stdout);
    #endif 
    int n;
    cin >> n;
    for(int i=1;i<=n;i++) {
        cin >> a[i].fi >> a[i].se;
    }
    sort(a+1,a+1+n); 
    int ans=-1e18;
    int tmp=1e18; 
    for(int i=1;i<=n;i++) {
        pre[i]=pre[i-1]+a[i].se; 
        tmp=min(tmp,pre[i-1]-a[i].se);
        ans=max(ans,pre[i]-a[i].fi-tmp);
        //cout << tmp << endl;
    }
    cout << ans;
    return 0;
}
/*
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*/

Compilation message (stderr)

art.cpp: In function 'int main()':
art.cpp:23:12: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)' declared with attribute 'warn_unused_result' [-Wunused-result]
   23 |     freopen("in.txt", "r", stdin);
      |     ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~
art.cpp:24:12: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)' declared with attribute 'warn_unused_result' [-Wunused-result]
   24 |     freopen("out.txt", "w", stdout);
      |     ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~

• Subtask 1: 0 / 10
• Subtask 2: 0 / 20
• Subtask 3: 0 / 20
• Subtask 4: 0 / 50