QOJ.ac

QOJ

IDProblemSubmitterResultTimeMemoryLanguageFile sizeSubmit timeJudge time
#789870#9810. Obliviate, Then ReincarnateCai_GuangTL 0ms3620kbC++201.4kb2024-11-27 22:20:452024-11-27 22:20:51

Judging History

This is the latest submission verdict.

  • [2024-11-27 22:20:51]
  • Judged
  • Verdict: TL
  • Time: 0ms
  • Memory: 3620kb
  • [2024-11-27 22:20:45]
  • Submitted

answer

#include <bits/stdc++.h>

using namespace std;

#define int long long
const int inf=1e18;
signed main() {
    std::ios::sync_with_stdio(false);
    std::cin.tie(0);
    int n,m,q;
    cin>>n>>m>>q;
    vector<int>vis(n,-inf),res(n,-1ll);
    vector<vector<array<int,2>>>e(n);
    auto get=[&](int x)->int{
        return ((x%n)+n)%n;
    };
    for(int i=0;i<m;++i){
        int x,y;
        cin>>x>>y;
        if(!y) continue;
        e[get(x)].push_back({x,y});
        if(y%n==0) res[get(x)]=1;
    }

    for(int i=0;i<n;++i){
        if(res[i]!=-1) continue;
        stack<int>st;
        auto dfs=[&](auto dfs,int u)->int{
            int du=get(u);
            st.push(du);
            if(res[du]!=-1){
                return res[du];
            }
            if(vis[du]!=-inf){
                if(vis[du]==u) return -1;
                else return res[du]=1;
            }
            vis[du]=u;
            int b=-1;
            for(auto [x,y]:e[du]){
                if(dfs(dfs,u+y)==1) b=1;
            }
            vis[du]=-inf;
            return res[du]=b;
        };
        res[i]=dfs(dfs,i);
        while(!st.empty()){
            auto u=st.top();
            st.pop();
            if(res[u]==-1) res[u]=0;
        }
    }
    // for(int i=0;i<n;++i) cerr<<res[i]<<" \n"[i==n-1];
    for(int i=0;i<q;++i){
        int x;
        cin>>x;
        cout<<(res[get(x)]?"Yes\n":"No\n");
    }
}

Details

Tip: Click on the bar to expand more detailed information

Test #1:

score: 100
Accepted
time: 0ms
memory: 3560kb

input:

3 2 3
1 1
-1 3
1
2
3

output:

Yes
Yes
No

result:

ok 3 tokens

Test #2:

score: 0
Accepted
time: 0ms
memory: 3616kb

input:

3 2 3
1 1
-1 0
1
2
3

output:

No
No
No

result:

ok 3 tokens

Test #3:

score: 0
Accepted
time: 0ms
memory: 3620kb

input:

1 1 1
0 1000000000
-1000000000

output:

Yes

result:

ok "Yes"

Test #4:

score: 0
Accepted
time: 0ms
memory: 3552kb

input:

3 2 3
0 1000000000
1 -1000000000
-1000000000
0
-1000000000

output:

No
No
No

result:

ok 3 tokens

Test #5:

score: -100
Time Limit Exceeded

input:

50134 500000 500000
-154428638 -283522863
-186373509 -327130969
154999046 46750274
-933523447 349415487
-437683609 140099255
864996699 -262318199
811293034 -264299324
120273173 52410685
874944410 -52048424
445049930 -803690605
-138111276 -104634331
720288580 126597671
471164416 -348777147
-356502322...

output:


result: