Submission #66735

#	Time	Username	Problem	Language	Result	Execution time	Memory
66735		ekrem	Art Exhibition (JOI18_art)	C++98	0 / 100	3 ms	564 KiB

art

#include <bits/stdc++.h>
#define st first
#define nd second
#define mp make_pair
#define pb push_back
#define N 1000005
using namespace std;

typedef long long ll;

ll n, l, r, mx, mn, top, ans;
pair < ll , ll > a[N];

int main() {
	// freopen("in.txt", "r", stdin);
	// freopen("out.txt", "w", stdout);
	scanf("%lld",&n);
	for(ll i = 1; i <= n; i++)
		scanf("%lld %lld",&a[i].st ,&a[i].nd);
	sort(a + 1, a + n + 1);
	l = r = 1;
	mx = a[1].st;
	mn = a[1].st;
	top = a[1].nd;
	ans = max(ans, top - (mx - mn));
	for(r = 2; r <= n; r++){
		top += a[r].nd;
		mx = a[r].st;
		while(l < r){
			if(top - a[l].nd - (mx - a[l + 1].st) > top - (mx - mn)){
				top -= a[l].nd;
				l++;
				mn = a[l].st;
			}
			else
				break;
		}
		ans = max(ans, top - (mx - mn));
	}
	printf("%lld\n",ans);
	return 0;
}

Compilation message (stderr)

art.cpp: In function 'int main()':
art.cpp:17:7: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
  scanf("%lld",&n);
  ~~~~~^~~~~~~~~~~
art.cpp:19:8: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
   scanf("%lld %lld",&a[i].st ,&a[i].nd);
   ~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

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