Submission #1212379

#	Time	Username	Problem	Language	Result	Execution time	Memory
1212379		annn	Art Exhibition (JOI18_art)	C++17	0 / 100	0 ms	320 KiB

art

#include <bits/stdc++.h>
using namespace std;

#define int long long
#define endl "\n"
#define pb push_back
#define ff first
#define ss second
#define ii pair<int, int>
#define vi vector<int>
#define vii vector<pair<int, int>>
#define rep(i, a, b) for (int i = a; i <= b; i++)
const int INF = 4e18;
const int MOD = 1e9 + 7;

int n; const int mx = 5e5 + 3;
ii a[mx]; int pfs[mx];
int ans = -INF;
void GetInput() {
    cin >> n;
    rep(i, 1, n) cin >> a[i].ff >> a[i].ss;
}

void Solve() {
	sort(a+1, a+1+n);
	rep(i, 1, n) pfs[i] = pfs[i-1] + a[i].ss;
	int ma = -a[1].ff;
	rep(i, 1, n) {
		ans = max(ans, pfs[i] - a[i].ff + ma);
		ma = max(ma, a[i].ff - pfs[i-1]);
	}
}

void PrintAns() {
	cout << ans;
}

void Reset() {

}

signed main() {
    ios_base::sync_with_stdio(false);
    cin.tie(nullptr); cout.tie(nullptr);

    int TEST = 1;
    //cin >> TEST;
    while (TEST--) {
        Reset();
        GetInput();
        Solve();
        PrintAns();
    }

    return 0;

}

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