Submission #335448

#	Time	Username	Problem	Language	Result	Execution time	Memory
335448		bigDuck	Art Exhibition (JOI18_art)	C++14	100 / 100	244 ms	21100 KiB

art

#include<bits/stdc++.h>
using namespace std;
#define INIT  ios_base :: sync_with_stdio(false); cin.tie(NULL); cout.tie(NULL);mt19937 rng(chrono::steady_clock::now().time_since_epoch().count());
#define mp make_pair
#define pb push_back
#define ft first
#define sc second
#define ll long long
#define pii pair<int, int>
#define count_bits __builtin_popcount
#define int ll

int t, n, m, k;
pii ab[500010];


int32_t main(){
INIT
cin>>n;
for(int i=1; i<=n; i++){
    cin>>ab[i].ft>>ab[i].sc;
}

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

int inf=1e17;
int mn=inf;

int res=0;
int sum=0;

for(int i=n; i>=1; i--){
        sum+=ab[i].sc;
    mn=min(mn, sum+ab[i].ft-ab[i].sc);
    res=max( sum-mn+ab[i].ft, res);
}

cout<<res;

return 0;
}

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