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Submission #254500

# Submission time Handle Problem Language Result Execution time Memory
254500 2020-07-30T06:54:31 Z nandonathaniel Potatoes and fertilizers (LMIO19_bulves) C++14
100 / 100
 208 ms 15216 KB 
#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

# Verdict Execution time Memory 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

# Verdict Execution time Memory 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

# Verdict Execution time Memory 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

# Verdict Execution time Memory 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

# Verdict Execution time Memory 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