Submission #52347

#	Time	Username	Problem	Language	Result	Execution time	Memory
52347		tmwilliamlin168	Art Exhibition (JOI18_art)	C++14	100 / 100	117 ms	8572 KiB

art

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

#define ll long long
#define pll pair<ll, ll>
#define fi first
#define se second

inline ll in() {
	ll result = 0;
	char ch = getchar_unlocked();
	while(true) {
		if(ch >= '0' && ch <= '9')
			break;
		ch = getchar_unlocked();
	}
	result = ch-'0';
	while(true) {
		ch = getchar_unlocked();
		if (ch < '0' || ch > '9')
			break;
		result = result*10 + (ch - '0');
	}
	return result;
}
inline void out(ll x) {
	ll rev=x;
	int c=0;
	while(!(rev%10)) {
		++c;
		rev/=10;
	}
	rev=0;
	while(x) {
		rev=rev*10+x%10;
		x/=10;
	}
	while(rev) {
		putchar_unlocked(rev%10+'0');
		rev/=10;
	}
	while(c--)
		putchar_unlocked('0');
}

const int mxN=5e5;
int n;
ll mx, ans;
pll ps[mxN+1];

int main() {
	n=in();
	for(int i=1; i<=n; ++i)
		ps[i].fi=in(), ps[i].se=in();
	sort(ps, ps+n+1);
	for(int i=1; i<=n; ++i) {
		ps[i].se+=ps[i-1].se;
		mx=max(ps[i].fi-ps[i-1].se, mx);
		ans=max(ps[i].se-ps[i].fi+mx, ans);
	}
	out(ans);
}

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