답안 #254500

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
254500	2020-07-30T06:54:31 Z	nandonathaniel	Potatoes and fertilizers (LMIO19_bulves)	C++14	100 / 100	208 ms	15216 KB

bulves

#include<bits/stdc++.h>
using namespace std;
const int MAXN=5e5+5;
long long pref[MAXN];

int main(){
	ios_base::sync_with_stdio(false);cin.tie(NULL);cout.tie(NULL);
	int n,a,b;
	long long ans=0;
	cin >> n;
	for(int i=1;i<=n;i++){
		cin >> a >> b;
		pref[i]=pref[i-1]+a-b;
	}
	for(int i=1;i<=n;i++){
		if(pref[i]>pref[n]){
			ans+=(pref[i]-pref[n]);
			pref[i]=pref[n];
		}
		else if(pref[i]<0){
			ans+=(-pref[i]);
			pref[i]=0;
		}
	}
	//make pref non decreasing -> Classic Slope Trick CF713C
	priority_queue<long long> PQ;
	for(int i=1;i<=n;i++){
		PQ.push(pref[i]);PQ.push(pref[i]);
		ans+=(PQ.top()-pref[i]);
		PQ.pop();
	}
	cout << ans << '\n';
	return 0;
}

Subtask #1

24.0 / 24.0

#	결과	실행 시간	메모리	Grader output
1	Correct	0 ms	384 KB	Output is correct
2	Correct	1 ms	512 KB	Output is correct
3	Correct	1 ms	512 KB	Output is correct
4	Correct	10 ms	1664 KB	Output is correct
5	Correct	21 ms	2932 KB	Output is correct
6	Correct	75 ms	7796 KB	Output is correct
7	Correct	159 ms	15212 KB	Output is correct
8	Correct	130 ms	13420 KB	Output is correct
9	Correct	123 ms	12784 KB	Output is correct
10	Correct	100 ms	10476 KB	Output is correct
11	Correct	98 ms	10424 KB	Output is correct

Subtask #2

10.0 / 10.0

#	결과	실행 시간	메모리	Grader output
1	Correct	0 ms	384 KB	Output is correct
2	Correct	1 ms	512 KB	Output is correct
3	Correct	1 ms	512 KB	Output is correct
4	Correct	10 ms	1664 KB	Output is correct
5	Correct	21 ms	2932 KB	Output is correct
6	Correct	75 ms	7796 KB	Output is correct
7	Correct	159 ms	15212 KB	Output is correct
8	Correct	130 ms	13420 KB	Output is correct
9	Correct	123 ms	12784 KB	Output is correct
10	Correct	100 ms	10476 KB	Output is correct
11	Correct	98 ms	10424 KB	Output is correct
12	Correct	40 ms	4212 KB	Output is correct
13	Correct	96 ms	10992 KB	Output is correct
14	Correct	161 ms	15216 KB	Output is correct
15	Correct	129 ms	13424 KB	Output is correct
16	Correct	120 ms	12652 KB	Output is correct
17	Correct	98 ms	10476 KB	Output is correct
18	Correct	1 ms	384 KB	Output is correct

Subtask #3

20.0 / 20.0

#	결과	실행 시간	메모리	Grader output
1	Correct	0 ms	384 KB	Output is correct
2	Correct	1 ms	512 KB	Output is correct
3	Correct	0 ms	384 KB	Output is correct
4	Correct	1 ms	384 KB	Output is correct
5	Correct	1 ms	384 KB	Output is correct
6	Correct	1 ms	384 KB	Output is correct
7	Correct	2 ms	384 KB	Output is correct
8	Correct	1 ms	384 KB	Output is correct
9	Correct	1 ms	384 KB	Output is correct
10	Correct	1 ms	384 KB	Output is correct

Subtask #4

10.0 / 10.0

#	결과	실행 시간	메모리	Grader output
1	Correct	0 ms	384 KB	Output is correct
2	Correct	1 ms	512 KB	Output is correct
3	Correct	1 ms	512 KB	Output is correct
4	Correct	0 ms	384 KB	Output is correct
5	Correct	1 ms	384 KB	Output is correct
6	Correct	1 ms	384 KB	Output is correct
7	Correct	1 ms	384 KB	Output is correct
8	Correct	2 ms	384 KB	Output is correct
9	Correct	1 ms	384 KB	Output is correct
10	Correct	1 ms	384 KB	Output is correct
11	Correct	1 ms	384 KB	Output is correct
12	Correct	1 ms	512 KB	Output is correct
13	Correct	2 ms	512 KB	Output is correct
14	Correct	2 ms	384 KB	Output is correct
15	Correct	1 ms	512 KB	Output is correct
16	Correct	1 ms	384 KB	Output is correct
17	Correct	1 ms	512 KB	Output is correct
18	Correct	1 ms	384 KB	Output is correct

Subtask #5

36.0 / 36.0

#	결과	실행 시간	메모리	Grader output
1	Correct	0 ms	384 KB	Output is correct
2	Correct	1 ms	512 KB	Output is correct
3	Correct	1 ms	512 KB	Output is correct
4	Correct	0 ms	384 KB	Output is correct
5	Correct	1 ms	384 KB	Output is correct
6	Correct	1 ms	384 KB	Output is correct
7	Correct	1 ms	384 KB	Output is correct
8	Correct	2 ms	384 KB	Output is correct
9	Correct	1 ms	384 KB	Output is correct
10	Correct	1 ms	384 KB	Output is correct
11	Correct	10 ms	1664 KB	Output is correct
12	Correct	21 ms	2932 KB	Output is correct
13	Correct	75 ms	7796 KB	Output is correct
14	Correct	159 ms	15212 KB	Output is correct
15	Correct	130 ms	13420 KB	Output is correct
16	Correct	123 ms	12784 KB	Output is correct
17	Correct	100 ms	10476 KB	Output is correct
18	Correct	98 ms	10424 KB	Output is correct
19	Correct	40 ms	4212 KB	Output is correct
20	Correct	96 ms	10992 KB	Output is correct
21	Correct	161 ms	15216 KB	Output is correct
22	Correct	129 ms	13424 KB	Output is correct
23	Correct	120 ms	12652 KB	Output is correct
24	Correct	98 ms	10476 KB	Output is correct
25	Correct	1 ms	384 KB	Output is correct
26	Correct	1 ms	512 KB	Output is correct
27	Correct	2 ms	512 KB	Output is correct
28	Correct	2 ms	384 KB	Output is correct
29	Correct	1 ms	512 KB	Output is correct
30	Correct	1 ms	384 KB	Output is correct
31	Correct	1 ms	512 KB	Output is correct
32	Correct	45 ms	4212 KB	Output is correct
33	Correct	118 ms	10988 KB	Output is correct
34	Correct	197 ms	15184 KB	Output is correct
35	Correct	169 ms	12868 KB	Output is correct
36	Correct	150 ms	13420 KB	Output is correct
37	Correct	208 ms	15212 KB	Output is correct
38	Correct	107 ms	11372 KB	Output is correct
39	Correct	119 ms	10988 KB	Output is correct
40	Correct	106 ms	10476 KB	Output is correct
41	Correct	111 ms	10472 KB	Output is correct
42	Correct	107 ms	10476 KB	Output is correct
43	Correct	109 ms	10476 KB	Output is correct
44	Correct	160 ms	15212 KB	Output is correct
45	Correct	126 ms	10732 KB	Output is correct
46	Correct	106 ms	10344 KB	Output is correct
47	Correct	1 ms	384 KB	Output is correct