oj.uz

Submission #951920

# Submission time Handle Problem Language Result Execution time Memory
951920 2024-03-23T01:51:17 Z SaMuEl0516 Paths (BOI18_paths) C++17
70 / 100
 181 ms 35704 KB 
#include<bits/stdc++.h>
using namespace std;
int color[(int)3e5+5],k4[(int)3e5+5][10];
vector<int>cnt[(int)3e5+5];
pair<int,int>e[(int)3e5+5];
int main(){
    cin.tie(0)->sync_with_stdio(0);
    int n,m,k;
    cin>>n>>m>>k;
    for(int i=1;i<=n;i++)cin>>color[i];
    for(int i=0;i<m;i++){
        cin>>e[i].first>>e[i].second;
        cnt[e[i].first].push_back(e[i].second),cnt[e[i].second].push_back(e[i].first);
    }
    long long int ans=0;
    if(k>=2){
        for(int i=0;i<m;i++)if(color[e[i].first]!=color[e[i].second])ans+=2;
    }
    if(k>=3){
        for(int i=1;i<=n;i++){
            int c[10];
            for(int j=1;j<=k;j++)c[j]=0;
            for(int j:cnt[i])c[color[j]]++;
            for(int x=1;x<=k;x++)for(int y=1;y<=k;y++){
                if(x==y||x==color[i]||y==color[i])continue;
                ans+=1ll*c[x]*c[y];
            }
        }
    }
    if(k>=4){
        for(int i=1;i<=n;i++){
            for(int j=1;j<=k;j++)k4[i][j]=0;
        }
        for(int i=1;i<=n;i++){
            for(int j:cnt[i])k4[i][color[j]]++;
        }
        for(int i=0;i<m;i++){
            if(color[e[i].first]==color[e[i].second])continue;
            for(int x=1;x<=k;x++)for(int y=1;y<=k;y++){
                if(x==y||x==color[e[i].first]||x==color[e[i].second]||y==color[e[i].first]||y==color[e[i].second])continue;
                ans+=2ll*k4[e[i].first][x]*k4[e[i].second][y];
            }
        }
    }
    cout<<ans;
}

Subtask #1
23.0 / 23.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 8536 KB Output is correct
2 Correct 2 ms 8540 KB Output is correct
3 Correct 3 ms 8632 KB Output is correct
4 Correct 3 ms 8540 KB Output is correct
5 Correct 2 ms 8540 KB Output is correct
6 Correct 3 ms 8540 KB Output is correct
7 Correct 2 ms 8536 KB Output is correct
8 Correct 2 ms 8536 KB Output is correct
9 Correct 2 ms 8540 KB Output is correct
10 Correct 2 ms 8540 KB Output is correct

Subtask #2
20.0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 46 ms 17492 KB Output is correct
2 Correct 38 ms 16720 KB Output is correct
3 Correct 119 ms 24660 KB Output is correct
4 Correct 58 ms 18676 KB Output is correct
5 Correct 66 ms 18736 KB Output is correct
6 Correct 82 ms 22744 KB Output is correct
7 Correct 126 ms 24756 KB Output is correct
8 Correct 117 ms 25428 KB Output is correct

Subtask #3
27.0 / 27.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 8536 KB Output is correct
2 Correct 2 ms 8540 KB Output is correct
3 Correct 3 ms 8632 KB Output is correct
4 Correct 3 ms 8540 KB Output is correct
5 Correct 2 ms 8540 KB Output is correct
6 Correct 3 ms 8540 KB Output is correct
7 Correct 2 ms 8536 KB Output is correct
8 Correct 2 ms 8536 KB Output is correct
9 Correct 2 ms 8540 KB Output is correct
10 Correct 2 ms 8540 KB Output is correct
11 Correct 46 ms 17492 KB Output is correct
12 Correct 38 ms 16720 KB Output is correct
13 Correct 119 ms 24660 KB Output is correct
14 Correct 58 ms 18676 KB Output is correct
15 Correct 66 ms 18736 KB Output is correct
16 Correct 82 ms 22744 KB Output is correct
17 Correct 126 ms 24756 KB Output is correct
18 Correct 117 ms 25428 KB Output is correct
19 Correct 43 ms 17236 KB Output is correct
20 Correct 37 ms 16724 KB Output is correct
21 Correct 135 ms 24652 KB Output is correct
22 Correct 59 ms 18696 KB Output is correct
23 Correct 54 ms 18632 KB Output is correct
24 Correct 91 ms 22728 KB Output is correct
25 Correct 135 ms 24916 KB Output is correct
26 Correct 115 ms 25428 KB Output is correct
27 Correct 46 ms 16720 KB Output is correct
28 Correct 62 ms 18136 KB Output is correct
29 Correct 181 ms 35704 KB Output is correct
30 Correct 100 ms 27332 KB Output is correct
31 Correct 104 ms 27440 KB Output is correct
32 Correct 149 ms 35468 KB Output is correct
33 Correct 2 ms 8540 KB Output is correct
34 Correct 2 ms 8536 KB Output is correct
35 Correct 2 ms 8540 KB Output is correct
36 Correct 2 ms 8540 KB Output is correct
37 Correct 2 ms 8540 KB Output is correct
38 Correct 2 ms 8540 KB Output is correct
39 Correct 2 ms 8540 KB Output is correct
40 Correct 4 ms 8672 KB Output is correct
41 Correct 2 ms 8540 KB Output is correct
42 Correct 2 ms 8540 KB Output is correct

Subtask #4
0 / 30.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 8540 KB Output is correct
2 Incorrect 19 ms 12632 KB Output isn't correct
3 Halted 0 ms 0 KB -