oj.uz

Submission #66735

# Submission time Handle Problem Language Result Execution time Memory
66735 2018-08-12T07:59:57 Z ekrem Art Exhibition (JOI18_art) C++
0 / 100
 3 ms 564 KB 
#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

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 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 3 ms 376 KB Output is correct
2 Correct 2 ms 376 KB Output is correct
3 Incorrect 2 ms 564 KB Output isn't correct
4 Halted 0 ms 0 KB -

Subtask #2
0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 3 ms 376 KB Output is correct
2 Correct 2 ms 376 KB Output is correct
3 Incorrect 2 ms 564 KB Output isn't correct
4 Halted 0 ms 0 KB -

Subtask #3
0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 3 ms 376 KB Output is correct
2 Correct 2 ms 376 KB Output is correct
3 Incorrect 2 ms 564 KB Output isn't correct
4 Halted 0 ms 0 KB -

Subtask #4
0 / 50.0

# Verdict Execution time Memory Grader output
1 Correct 3 ms 376 KB Output is correct
2 Correct 2 ms 376 KB Output is correct
3 Incorrect 2 ms 564 KB Output isn't correct
4 Halted 0 ms 0 KB -