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답안 #526938

# 제출 시각 아이디 문제 언어 결과 실행 시간 메모리
526938 2022-02-16T16:57:02 Z oneloveforever Autobus (COCI22_autobus) C++14
30 / 70
 1000 ms 17520 KB 
#include<bits/stdc++.h>
using namespace std;
#define ll long long
#define x first
#define y second
#define ii pair<ll,ll>
const ll inf=1e16+7;
const ll M=100;
ll dp[M][M][M];
vector<vector<ii> >a;
ll n,m;
struct node
{
    ll x,used,value;
    node(ll _value=0,ll _x=0,ll _used=0)
    {
        x=_x,used=_used,value=_value;
    }
};
ll calc(ll path,ll x,ll y)
{
    if(x==y)return 0;
    if(!path)return inf;
    if(dp[path][x][y]!=-1)return dp[path][x][y];
    ll ans=inf;
    for(ii u:a[x])
    {
        ll node=u.x;
        ll cost=u.y;
        ans=min(ans,calc(path-1,node,y)+cost);
    }
    dp[path][x][y]=ans;
    return ans;
}
bool minimize(ll &a,ll b)
{
    if(a>b)
    {
        a=b;
        return true;
    }
    return false;
}
int main()
{
    //freopen("test.inp","r",stdin);
    //freopen("test.out","w",stdout);
    ios_base::sync_with_stdio(false);
    cin.tie(0);
    cout.tie(0);
    cin>>n>>m;
    a.resize(n+7);
    for(ll i=1;i<=m;i++)
    {
        ll x,y,value;
        cin>>x>>y>>value;
        a[x].push_back({y,value});
    }
    ll q,k;
    cin>>k>>q;
    memset(dp,-1,sizeof(dp));
    while(q--)
    {
        ll node_x,node_y;
        cin>>node_x>>node_y;
        ll ans=calc(min(k,n-1),node_x,node_y);
        cout<<(ans>=inf?-1:ans)<<endl;
    }
}

Subtask #1
15.0 / 15.0

# 결과 실행 시간 메모리 Grader output
1 Correct 4 ms 8012 KB Output is correct
2 Correct 4 ms 8012 KB Output is correct
3 Correct 5 ms 8012 KB Output is correct
4 Correct 3 ms 8012 KB Output is correct
5 Correct 4 ms 8012 KB Output is correct
6 Correct 5 ms 8140 KB Output is correct

Subtask #2
15.0 / 15.0

# 결과 실행 시간 메모리 Grader output
1 Correct 12 ms 8140 KB Output is correct
2 Correct 15 ms 8176 KB Output is correct
3 Correct 13 ms 8188 KB Output is correct
4 Correct 12 ms 8140 KB Output is correct
5 Correct 11 ms 8140 KB Output is correct
6 Correct 14 ms 8332 KB Output is correct
7 Correct 15 ms 8344 KB Output is correct

Subtask #3
0 / 25.0

# 결과 실행 시간 메모리 Grader output
1 Correct 4 ms 8012 KB Output is correct
2 Correct 4 ms 8012 KB Output is correct
3 Correct 5 ms 8012 KB Output is correct
4 Correct 3 ms 8012 KB Output is correct
5 Correct 4 ms 8012 KB Output is correct
6 Correct 5 ms 8140 KB Output is correct
7 Correct 17 ms 8140 KB Output is correct
8 Correct 28 ms 8140 KB Output is correct
9 Correct 11 ms 8196 KB Output is correct
10 Correct 29 ms 8184 KB Output is correct
11 Correct 27 ms 8268 KB Output is correct
12 Correct 86 ms 8268 KB Output is correct
13 Correct 648 ms 17520 KB Output is correct
14 Correct 945 ms 17324 KB Output is correct
15 Execution timed out 1090 ms 17256 KB Time limit exceeded
16 Halted 0 ms 0 KB -

Subtask #4
0 / 15.0

# 결과 실행 시간 메모리 Grader output
1 Correct 4 ms 8012 KB Output is correct
2 Correct 4 ms 8012 KB Output is correct
3 Correct 5 ms 8012 KB Output is correct
4 Correct 3 ms 8012 KB Output is correct
5 Correct 4 ms 8012 KB Output is correct
6 Correct 5 ms 8140 KB Output is correct
7 Correct 12 ms 8140 KB Output is correct
8 Correct 15 ms 8176 KB Output is correct
9 Correct 13 ms 8188 KB Output is correct
10 Correct 12 ms 8140 KB Output is correct
11 Correct 11 ms 8140 KB Output is correct
12 Correct 14 ms 8332 KB Output is correct
13 Correct 15 ms 8344 KB Output is correct
14 Correct 17 ms 8140 KB Output is correct
15 Correct 28 ms 8140 KB Output is correct
16 Correct 11 ms 8196 KB Output is correct
17 Correct 29 ms 8184 KB Output is correct
18 Correct 27 ms 8268 KB Output is correct
19 Correct 86 ms 8268 KB Output is correct
20 Correct 648 ms 17520 KB Output is correct
21 Correct 945 ms 17324 KB Output is correct
22 Execution timed out 1090 ms 17256 KB Time limit exceeded
23 Halted 0 ms 0 KB -