Submission #867520

#	Time	Username	Problem	Language	Result	Execution time	Memory
867520		cheat_when_I_was_young	Art Exhibition (JOI18_art)	C++17	0 / 100	0 ms	2396 KiB

art

#include "bits/stdc++.h"
using namespace std;
void solve();
bool multitest();
int main() {
    ios::sync_with_stdio(false);
    cin.tie(nullptr);
    clock_t TIME = clock();
    int TEST = 1;
    if (multitest()) cin >> TEST;
    while (TEST--) solve();
    //cerr << "\nUsed: " << clock() - TIME << " ms\n\n";
}

bool multitest() {
    return 0;
}

const int NM = 5e5 + 5;

int n;
pair<long long, long long> a[NM];
long long p[NM];

void solve() {
    cin >> n;
    for (int i = 1; i <= n; ++i)
        cin >> a[i].first >> a[i].second;

    sort(a+1, a+n+1);

    for (int i = 1; i <= n; ++i)
        p[i] = p[i-1] + a[i].second;

    long long min_prefix = 0, ans = 0;

    for (int i = 1; i <= n; ++i) {
        ans = max(ans, p[i] - a[i].first - min_prefix);
        min_prefix = min(min_prefix, p[i-1] - a[i].first);
    }

    cout << ans;
}

Compilation message (stderr)

art.cpp: In function 'int main()':
art.cpp:8:13: warning: unused variable 'TIME' [-Wunused-variable]
    8 |     clock_t TIME = clock();
      |             ^~~~

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