Submission #1269244

#	Time	Username	Problem	Language	Result	Execution time	Memory
1269244		i_lov_aris	Art Exhibition (JOI18_art)	C++20	100 / 100	122 ms	8268 KiB

art

#include<bits/stdc++.h>
/*
    --> Programmed by katamori1310 <--
                ᓀ‸ᓂ
    Chillin with Blue Archive
*/
#define int long long
#define ull unsigned long long
#define aris ""
using namespace std;
const int MAXN = 100000;
const int MOD = 1e9 + 7;
const int MAXP = 1e6;
const int INF = 1e18;
const int MODE = MOD - 2;

/* 
    I love Aris and Kei at the same time
        ☆ ☆ ☆ Pampakapam ☆ ☆ ☆
*/
inline void kei(){
    ios_base::sync_with_stdio(false);
    cin.tie(NULL);
    cout.tie(NULL);
}
int n;
pair<int, int>a[5 * MAXN + 5];
int pfs[5 * MAXN + 5];
void solve(){
    cin >> n;
    for(int i = 1; i <= n; i++){
        cin >> a[i].first >> a[i].second;
    }
    sort(a + 1, a + n + 1);
    int pref = 0;
    int cur = INF;
    int res = -INF;
    for(int i = 1; i <= n; i++){
        cur = min(cur, pref - a[i].first);
        pref += a[i].second;
        res = max(res, pref - a[i].first - cur);
    }
    cout << res << "\n";
}
signed main(){
    if(fopen(aris".inp", "r")){
        freopen(aris".inp", "r", stdin);
        freopen(aris".out", "w", stdout);
    }
    kei();
    int T;
    // cin >> T;
    T = 1;
    while(T--){
        solve();
    }
    return 0;
}

// 눈‸눈 

Compilation message (stderr)

art.cpp: In function 'int main()':
art.cpp:47:16: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)' declared with attribute 'warn_unused_result' [-Wunused-result]
   47 |         freopen(aris".inp", "r", stdin);
      |         ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~
art.cpp:48:16: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)' declared with attribute 'warn_unused_result' [-Wunused-result]
   48 |         freopen(aris".out", "w", stdout);
      |         ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~

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