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Submission #632175

# Submission time Handle Problem Language Result Execution time Memory
632175 2022-08-19T14:57:47 Z PoonYaPat Palembang Bridges (APIO15_bridge) C++14
100 / 100
 83 ms 5204 KB 
#include <bits/stdc++.h>
using namespace std;
typedef long long ll;

struct A {
    int x,y;
} s[100001];

bool cmp(A a, A b) {
    return a.x+a.y<b.x+b.y;
}

int n,k;
ll ans,rsum,lsum,con,g[100001];

priority_queue<int> lsq;
priority_queue<int, vector<int>, greater<int>> rsq;

void add(int x) {
    int median = lsq.empty() ? 1000000002 : lsq.top();

    if (x<=median) lsq.push(x), lsum+=x;
    else rsq.push(x), rsum+=x;

    if (lsq.size() < rsq.size()) {
        int k=rsq.top();
        rsq.pop();
        lsq.push(k);
        rsum-=k;
        lsum+=k;
    }

    if (lsq.size() > rsq.size()+1) {
        int k=lsq.top();
        lsq.pop();
        rsq.push(k);
        rsum+=k;
        lsum-=k;
    }
}

int main() {
    ios_base::sync_with_stdio(0); cin.tie(0);
    cin>>k>>n;
    int idx=0;
    for (int i=0; i<n; ++i) {
        char a,b;
        int x,y;
        cin>>a>>x>>b>>y;
        if (a==b) con+=abs(x-y);
        else s[idx++]={x,y}, ++con;
    }
    sort(s,s+idx,cmp);

    for (int i=0; i<idx; ++i) add(s[i].x), add(s[i].y), g[i]=rsum-lsum;
    ans=rsum-lsum+con;

    if (k==1) {
        cout<<ans;
        return 0;
    }

    while (!lsq.empty()) lsq.pop();
    while (!rsq.empty()) rsq.pop();

    lsum=0; rsum=0;
    for (int i=idx-1; i>0; --i) {
        add(s[i].x); add(s[i].y);
        ans=min(ans,rsum-lsum+g[i-1]+con);
    }
    cout<<ans;
}

Subtask #1
8.0 / 8.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 212 KB Output is correct
2 Correct 1 ms 212 KB Output is correct
3 Correct 1 ms 340 KB Output is correct
4 Correct 1 ms 340 KB Output is correct
5 Correct 1 ms 340 KB Output is correct
6 Correct 1 ms 340 KB Output is correct
7 Correct 1 ms 340 KB Output is correct
8 Correct 1 ms 340 KB Output is correct
9 Correct 2 ms 340 KB Output is correct
10 Correct 1 ms 340 KB Output is correct
11 Correct 1 ms 340 KB Output is correct

Subtask #2
14.0 / 14.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 212 KB Output is correct
2 Correct 0 ms 212 KB Output is correct
3 Correct 1 ms 368 KB Output is correct
4 Correct 1 ms 340 KB Output is correct
5 Correct 1 ms 340 KB Output is correct
6 Correct 1 ms 340 KB Output is correct
7 Correct 1 ms 340 KB Output is correct
8 Correct 1 ms 340 KB Output is correct
9 Correct 1 ms 340 KB Output is correct
10 Correct 1 ms 340 KB Output is correct
11 Correct 1 ms 340 KB Output is correct
12 Correct 27 ms 2928 KB Output is correct
13 Correct 50 ms 2956 KB Output is correct
14 Correct 41 ms 2700 KB Output is correct
15 Correct 32 ms 2032 KB Output is correct
16 Correct 34 ms 3040 KB Output is correct
17 Correct 42 ms 3092 KB Output is correct
18 Correct 37 ms 2988 KB Output is correct
19 Correct 43 ms 3100 KB Output is correct
20 Correct 32 ms 3076 KB Output is correct
21 Correct 44 ms 3028 KB Output is correct

Subtask #3
9.0 / 9.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 212 KB Output is correct
2 Correct 0 ms 224 KB Output is correct
3 Correct 1 ms 212 KB Output is correct
4 Correct 1 ms 340 KB Output is correct
5 Correct 1 ms 332 KB Output is correct
6 Correct 1 ms 212 KB Output is correct
7 Correct 0 ms 212 KB Output is correct
8 Correct 1 ms 340 KB Output is correct
9 Correct 1 ms 212 KB Output is correct
10 Correct 1 ms 340 KB Output is correct
11 Correct 1 ms 328 KB Output is correct
12 Correct 1 ms 324 KB Output is correct

Subtask #4
32.0 / 32.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 212 KB Output is correct
2 Correct 1 ms 212 KB Output is correct
3 Correct 1 ms 212 KB Output is correct
4 Correct 0 ms 212 KB Output is correct
5 Correct 1 ms 212 KB Output is correct
6 Correct 1 ms 212 KB Output is correct
7 Correct 1 ms 212 KB Output is correct
8 Correct 1 ms 340 KB Output is correct
9 Correct 1 ms 340 KB Output is correct
10 Correct 1 ms 340 KB Output is correct
11 Correct 1 ms 212 KB Output is correct
12 Correct 1 ms 340 KB Output is correct
13 Correct 1 ms 340 KB Output is correct
14 Correct 1 ms 328 KB Output is correct
15 Correct 1 ms 340 KB Output is correct
16 Correct 1 ms 328 KB Output is correct
17 Correct 1 ms 340 KB Output is correct
18 Correct 1 ms 340 KB Output is correct
19 Correct 1 ms 340 KB Output is correct
20 Correct 1 ms 364 KB Output is correct
21 Correct 1 ms 340 KB Output is correct
22 Correct 1 ms 340 KB Output is correct
23 Correct 1 ms 356 KB Output is correct
24 Correct 1 ms 340 KB Output is correct

Subtask #5
37.0 / 37.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 212 KB Output is correct
2 Correct 0 ms 212 KB Output is correct
3 Correct 0 ms 212 KB Output is correct
4 Correct 1 ms 212 KB Output is correct
5 Correct 1 ms 212 KB Output is correct
6 Correct 1 ms 324 KB Output is correct
7 Correct 1 ms 212 KB Output is correct
8 Correct 0 ms 332 KB Output is correct
9 Correct 1 ms 212 KB Output is correct
10 Correct 1 ms 332 KB Output is correct
11 Correct 0 ms 212 KB Output is correct
12 Correct 1 ms 340 KB Output is correct
13 Correct 1 ms 340 KB Output is correct
14 Correct 1 ms 340 KB Output is correct
15 Correct 1 ms 340 KB Output is correct
16 Correct 1 ms 340 KB Output is correct
17 Correct 1 ms 332 KB Output is correct
18 Correct 1 ms 340 KB Output is correct
19 Correct 1 ms 340 KB Output is correct
20 Correct 1 ms 340 KB Output is correct
21 Correct 1 ms 340 KB Output is correct
22 Correct 1 ms 340 KB Output is correct
23 Correct 1 ms 340 KB Output is correct
24 Correct 1 ms 340 KB Output is correct
25 Correct 40 ms 3768 KB Output is correct
26 Correct 66 ms 3656 KB Output is correct
27 Correct 79 ms 4516 KB Output is correct
28 Correct 82 ms 5028 KB Output is correct
29 Correct 83 ms 5196 KB Output is correct
30 Correct 44 ms 2840 KB Output is correct
31 Correct 42 ms 4412 KB Output is correct
32 Correct 61 ms 5204 KB Output is correct
33 Correct 65 ms 4656 KB Output is correct
34 Correct 73 ms 5192 KB Output is correct
35 Correct 45 ms 4672 KB Output is correct
36 Correct 65 ms 4928 KB Output is correct
37 Correct 29 ms 3600 KB Output is correct