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Submission #394883

# Submission time Handle Problem Language Result Execution time Memory
394883 2021-04-27T12:01:52 Z Sugardorj Swapping Cities (APIO20_swap) C++14
0 / 100
 2000 ms 8124 KB 
#include "swap.h"
#include <bits/stdc++.h>
using namespace std;
long long  i,j,s,t;
long long link[261523],size[234567],c[234567],a[234567],l=12345678,r,tt,k,y,z,n,m,x;
pair<long long,long long>p[234567];

void init(int N, int M, vector <int> U, vector <int> V, vector <int> W) {
    n = N;
    m = M;
    for (i = 0; i <m; i ++){
        p[i].first=W[i];
        p[i].second=U[i]*l+V[i];
    }
    sort (p,p+m);
}
long long find(long long x) {
    while (x != link[x]) 
        x = link[x];
    return x;
}
bool same(long long x, long long y) {
    return find(x) == find(y);
}
void unite(long long x, long long y) {
    x = find(x);
    y = find(y);
    if (size[x] < size[y]) 
        swap(x,y);
    size[x] += size[y];
    if (c[x]+c[y]>0)
        c[x]=1;
    link[y] = x;
}
int getMinimumFuelCapacity(int u, int v) {
    for (i = 1; i<=n; i ++){
        link[i]=i;
        size[i]=1;
        c[i]=0;
        a[i]=0;
    }
    for (i = 0; i <m; i ++){
        x=p[i].second/l;
        y=p[i].second%l;
        a[x]++;
        a[y]++;
        if (find(x)==find(y)||a[x]>2||a[y]>2){
            c[find(x)]=1;
        }
        unite(x,y);
        
        
        if (find(u)==find(v)&&c[find(u)]==1){
            return p[i].first;
        }
    }
    
    
    return -1;
}

Subtask #1
0 / 6.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 332 KB Output is correct
2 Correct 1 ms 332 KB Output is correct
3 Incorrect 1 ms 332 KB Output isn't correct
4 Halted 0 ms 0 KB -

Subtask #2
0 / 7.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 332 KB Output is correct
2 Correct 1 ms 332 KB Output is correct
3 Execution timed out 2083 ms 8124 KB Time limit exceeded
4 Halted 0 ms 0 KB -

Subtask #3
0 / 17.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 332 KB Output is correct
2 Correct 1 ms 332 KB Output is correct
3 Incorrect 1 ms 332 KB Output isn't correct
4 Halted 0 ms 0 KB -

Subtask #4
0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 332 KB Output is correct
2 Correct 1 ms 332 KB Output is correct
3 Incorrect 1 ms 332 KB Output isn't correct
4 Halted 0 ms 0 KB -

Subtask #5
0 / 23.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 332 KB Output is correct
2 Correct 1 ms 332 KB Output is correct
3 Incorrect 1 ms 332 KB Output isn't correct
4 Halted 0 ms 0 KB -

Subtask #6
0 / 27.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 332 KB Output is correct
2 Correct 1 ms 332 KB Output is correct
3 Incorrect 1 ms 332 KB Output isn't correct
4 Halted 0 ms 0 KB -