oj.uz

Submission #231319

# Submission time Handle Problem Language Result Execution time Memory
231319 2020-05-13T11:14:07 Z DodgeBallMan Paths (BOI18_paths) C++14
53 / 100
 155 ms 40480 KB 
#include <bits/stdc++.h>

using namespace std;

const int N = 1e5 + 10;
int n, m, k, col[N];
long long dp[N][40], ans;
vector<int> g[N];

long long solve( int u, int bit ) {
    long long &ret = dp[u][bit];
    if( ret != -1 ) return ret;
    ret = 1;
    for( int v : g[u] ) if( ( 1<<col[v] ) & bit ) ret += solve( v, bit - ( 1<<col[v] ) );
    return ret;
}

int main()
{
    memset( dp, -1, sizeof dp );
    scanf("%d %d %d",&n,&m,&k);
    for( int i = 1 ; i <= n ; i++ ) {
        scanf("%d",&col[i]);
        col[i]--;
    }
    for( int i = 1, a, b ; i <= m ; i++ ) {
        scanf("%d %d",&a,&b);
        g[a].emplace_back( b ), g[b].emplace_back( a );
    }
    for( int i = 1 ; i <= n ; i++ ) ans += solve( i, (1<<k)-(1<<col[i])-1 ) - 1;
    printf("%lld",ans);
    return 0;
}

Compilation message

paths.cpp: In function 'int main()':
paths.cpp:21:10: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
     scanf("%d %d %d",&n,&m,&k);
     ~~~~~^~~~~~~~~~~~~~~~~~~~~
paths.cpp:23:14: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
         scanf("%d",&col[i]);
         ~~~~~^~~~~~~~~~~~~~
paths.cpp:27:14: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
         scanf("%d %d",&a,&b);
         ~~~~~^~~~~~~~~~~~~~~

Subtask #1
23.0 / 23.0

# Verdict Execution time Memory Grader output
1 Correct 20 ms 34176 KB Output is correct
2 Correct 20 ms 34048 KB Output is correct
3 Correct 20 ms 34048 KB Output is correct
4 Correct 21 ms 34048 KB Output is correct
5 Correct 20 ms 34048 KB Output is correct
6 Correct 20 ms 34048 KB Output is correct
7 Correct 23 ms 34048 KB Output is correct
8 Correct 20 ms 34040 KB Output is correct
9 Correct 21 ms 34048 KB Output is correct
10 Correct 26 ms 34048 KB Output is correct

Subtask #2
0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 125 ms 40480 KB Output is correct
2 Correct 109 ms 39800 KB Output is correct
3 Incorrect 30 ms 34816 KB Output isn't correct
4 Halted 0 ms 0 KB -

Subtask #3
0 / 27.0

# Verdict Execution time Memory Grader output
1 Correct 20 ms 34176 KB Output is correct
2 Correct 20 ms 34048 KB Output is correct
3 Correct 20 ms 34048 KB Output is correct
4 Correct 21 ms 34048 KB Output is correct
5 Correct 20 ms 34048 KB Output is correct
6 Correct 20 ms 34048 KB Output is correct
7 Correct 23 ms 34048 KB Output is correct
8 Correct 20 ms 34040 KB Output is correct
9 Correct 21 ms 34048 KB Output is correct
10 Correct 26 ms 34048 KB Output is correct
11 Correct 125 ms 40480 KB Output is correct
12 Correct 109 ms 39800 KB Output is correct
13 Incorrect 30 ms 34816 KB Output isn't correct
14 Halted 0 ms 0 KB -

Subtask #4
30.0 / 30.0

# Verdict Execution time Memory Grader output
1 Correct 20 ms 33920 KB Output is correct
2 Correct 64 ms 35832 KB Output is correct
3 Correct 49 ms 35704 KB Output is correct
4 Correct 116 ms 38520 KB Output is correct
5 Correct 90 ms 39320 KB Output is correct
6 Correct 145 ms 38648 KB Output is correct
7 Correct 58 ms 35832 KB Output is correct
8 Correct 125 ms 38552 KB Output is correct
9 Correct 105 ms 39280 KB Output is correct
10 Correct 125 ms 39388 KB Output is correct
11 Correct 123 ms 37084 KB Output is correct
12 Correct 91 ms 38256 KB Output is correct
13 Correct 119 ms 37372 KB Output is correct
14 Correct 155 ms 38520 KB Output is correct
15 Correct 119 ms 38648 KB Output is correct
16 Correct 20 ms 34048 KB Output is correct
17 Correct 21 ms 34048 KB Output is correct
18 Correct 23 ms 34016 KB Output is correct
19 Correct 21 ms 34048 KB Output is correct
20 Correct 22 ms 34048 KB Output is correct
21 Correct 23 ms 34048 KB Output is correct
22 Correct 21 ms 34048 KB Output is correct
23 Correct 20 ms 34048 KB Output is correct
24 Correct 24 ms 34048 KB Output is correct
25 Correct 21 ms 34052 KB Output is correct