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Submission #491548

# Submission time Handle Problem Language Result Execution time Memory
491548 2021-12-03T03:51:36 Z phamhoanghiep Potatoes and fertilizers (LMIO19_bulves) C++14
100 / 100
 197 ms 19144 KB 
#include<bits/stdc++.h>
using namespace std;
const int maxn=5e5+5;
typedef long long ll;
int a[maxn];
int b[maxn];
ll d[maxn];
int n;
ll ans=0; // dp[n][0]
// dp[n][i]: excessive of at most i
priority_queue<ll> pq;
signed main() {
    ios_base::sync_with_stdio(0);
    cin.tie(0); cout.tie(0);
    cin>>n;
    for(int i=1 ; i<=n ; i++) {
        cin>>a[i]>>b[i];
        d[i]=d[i-1]+1ll*(a[i]-b[i]);
        //cout<<"d "<<i<<" = "<<d[i]<<endl;
    }
    for(int i=1 ; i<n ; i++) {
        ans+=abs(d[i]);
        if(d[i]<0) d[i]=0;
        pq.push(d[i]);
        if(pq.top()>d[i]) {
            pq.pop();
            pq.push(d[i]);
        }
        //cout<<"ans = "<<ans<<endl;
        // slope change point 
    }
    while(!pq.empty()) {
        ans-=min(pq.top(),d[n]);
        pq.pop();
    }
    cout<<ans;
}

Subtask #1
24.0 / 24.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 320 KB Output is correct
2 Correct 1 ms 332 KB Output is correct
3 Correct 1 ms 460 KB Output is correct
4 Correct 13 ms 2000 KB Output is correct
5 Correct 28 ms 3604 KB Output is correct
6 Correct 95 ms 9768 KB Output is correct
7 Correct 122 ms 19080 KB Output is correct
8 Correct 137 ms 17252 KB Output is correct
9 Correct 122 ms 16792 KB Output is correct
10 Correct 97 ms 14264 KB Output is correct
11 Correct 104 ms 14252 KB Output is correct

Subtask #2
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 320 KB Output is correct
2 Correct 1 ms 332 KB Output is correct
3 Correct 1 ms 460 KB Output is correct
4 Correct 13 ms 2000 KB Output is correct
5 Correct 28 ms 3604 KB Output is correct
6 Correct 95 ms 9768 KB Output is correct
7 Correct 122 ms 19080 KB Output is correct
8 Correct 137 ms 17252 KB Output is correct
9 Correct 122 ms 16792 KB Output is correct
10 Correct 97 ms 14264 KB Output is correct
11 Correct 104 ms 14252 KB Output is correct
12 Correct 42 ms 5060 KB Output is correct
13 Correct 106 ms 13248 KB Output is correct
14 Correct 133 ms 19052 KB Output is correct
15 Correct 137 ms 17184 KB Output is correct
16 Correct 162 ms 16484 KB Output is correct
17 Correct 85 ms 14220 KB Output is correct
18 Correct 1 ms 332 KB Output is correct

Subtask #3
20.0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 320 KB Output is correct
2 Correct 1 ms 332 KB Output is correct
3 Correct 1 ms 332 KB Output is correct
4 Correct 1 ms 332 KB Output is correct
5 Correct 1 ms 332 KB Output is correct
6 Correct 1 ms 332 KB Output is correct
7 Correct 1 ms 460 KB Output is correct
8 Correct 1 ms 460 KB Output is correct
9 Correct 1 ms 332 KB Output is correct
10 Correct 1 ms 332 KB Output is correct

Subtask #4
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 320 KB Output is correct
2 Correct 1 ms 332 KB Output is correct
3 Correct 1 ms 460 KB Output is correct
4 Correct 1 ms 332 KB Output is correct
5 Correct 1 ms 332 KB Output is correct
6 Correct 1 ms 332 KB Output is correct
7 Correct 1 ms 460 KB Output is correct
8 Correct 1 ms 460 KB Output is correct
9 Correct 1 ms 332 KB Output is correct
10 Correct 1 ms 332 KB Output is correct
11 Correct 1 ms 332 KB Output is correct
12 Correct 1 ms 332 KB Output is correct
13 Correct 2 ms 460 KB Output is correct
14 Correct 1 ms 460 KB Output is correct
15 Correct 1 ms 460 KB Output is correct
16 Correct 1 ms 460 KB Output is correct
17 Correct 2 ms 468 KB Output is correct
18 Correct 1 ms 460 KB Output is correct

Subtask #5
36.0 / 36.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 320 KB Output is correct
2 Correct 1 ms 332 KB Output is correct
3 Correct 1 ms 460 KB Output is correct
4 Correct 1 ms 332 KB Output is correct
5 Correct 1 ms 332 KB Output is correct
6 Correct 1 ms 332 KB Output is correct
7 Correct 1 ms 460 KB Output is correct
8 Correct 1 ms 460 KB Output is correct
9 Correct 1 ms 332 KB Output is correct
10 Correct 1 ms 332 KB Output is correct
11 Correct 13 ms 2000 KB Output is correct
12 Correct 28 ms 3604 KB Output is correct
13 Correct 95 ms 9768 KB Output is correct
14 Correct 122 ms 19080 KB Output is correct
15 Correct 137 ms 17252 KB Output is correct
16 Correct 122 ms 16792 KB Output is correct
17 Correct 97 ms 14264 KB Output is correct
18 Correct 104 ms 14252 KB Output is correct
19 Correct 42 ms 5060 KB Output is correct
20 Correct 106 ms 13248 KB Output is correct
21 Correct 133 ms 19052 KB Output is correct
22 Correct 137 ms 17184 KB Output is correct
23 Correct 162 ms 16484 KB Output is correct
24 Correct 85 ms 14220 KB Output is correct
25 Correct 1 ms 332 KB Output is correct
26 Correct 2 ms 460 KB Output is correct
27 Correct 1 ms 460 KB Output is correct
28 Correct 1 ms 460 KB Output is correct
29 Correct 1 ms 460 KB Output is correct
30 Correct 2 ms 468 KB Output is correct
31 Correct 1 ms 460 KB Output is correct
32 Correct 1 ms 332 KB Output is correct
33 Correct 48 ms 5084 KB Output is correct
34 Correct 121 ms 13304 KB Output is correct
35 Correct 197 ms 19024 KB Output is correct
36 Correct 187 ms 16596 KB Output is correct
37 Correct 145 ms 17244 KB Output is correct
38 Correct 181 ms 19144 KB Output is correct
39 Correct 111 ms 15196 KB Output is correct
40 Correct 122 ms 14480 KB Output is correct
41 Correct 93 ms 14280 KB Output is correct
42 Correct 90 ms 14320 KB Output is correct
43 Correct 109 ms 14256 KB Output is correct
44 Correct 104 ms 14300 KB Output is correct
45 Correct 175 ms 19092 KB Output is correct
46 Correct 100 ms 14740 KB Output is correct
47 Correct 119 ms 13328 KB Output is correct