Submission #1033617

#	Submission time	Handle	Problem	Language	Result	Execution time	Memory
1033617	2024-07-25T04:06:19 Z	vjudge1	Toy Train (IOI17_train)	C++17	0 / 100	10 ms	8220 KB

train

#include "train.h"
#include<bits/stdc++.h>
using namespace std;
vector<int>adj[100100],radj[100100];
stack<int>stk;
int onstk[100100],id[100100],low[100100],cmp[100100],sz[100100],CC;
void tarjan(int n){
    onstk[n]=1;
    stk.push(n);
    id[n]=low[n]=++CC;
    for(auto i:adj[n]){
        if(!id[i])
            tarjan(i);
        if(onstk[i])
            low[n]=min(low[n],low[i]);
    }
    if(low[n]==id[n]){
        while(onstk[n]){
            int x=stk.top();
            stk.pop();cmp[x]=n;
            onstk[x]=0,sz[n]++;
        }
    }
}
vector<int>ans;
void yes(int n){
    if(ans[n])return;
    ans[n]=1;
    for(auto x:radj[n])
        yes(x);
}
std::vector<int> who_wins(std::vector<int> a, std::vector<int> r, std::vector<int> u, std::vector<int> v) {
    int n=a.size();
    ans.resize(n,0);
    for(int i=0;i<u.size();i++)
        adj[u[i]].push_back(v[i]),
        radj[v[i]].push_back(u[i]);
    for(int i=0;i<n;i++)
        if(!id[i])tarjan(i);
    for(int i=0;i<n;i++)
        if(sz[cmp[i]]>1&&r[i])
            yes(i);
    return ans;
}

Compilation message

train.cpp: In function 'std::vector<int> who_wins(std::vector<int>, std::vector<int>, std::vector<int>, std::vector<int>)':
train.cpp:35:18: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   35 |     for(int i=0;i<u.size();i++)
      |                 ~^~~~~~~~~

Subtask #1
0 / 5.0

#	Verdict	Execution time	Memory	Grader output
1	Incorrect	5 ms	7772 KB	3rd lines differ - on the 14th token, expected: '1', found: '0'
2	Halted	0 ms	0 KB	-

Subtask #2
0 / 10.0

#	Verdict	Execution time	Memory	Grader output
1	Incorrect	1 ms	6748 KB	3rd lines differ - on the 8th token, expected: '0', found: '1'
2	Halted	0 ms	0 KB	-

Subtask #3
0 / 11.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	6 ms	8220 KB	Output is correct
2	Correct	5 ms	8216 KB	Output is correct
3	Correct	8 ms	8028 KB	Output is correct
4	Correct	7 ms	8028 KB	Output is correct
5	Correct	7 ms	8028 KB	Output is correct
6	Correct	8 ms	8028 KB	Output is correct
7	Correct	8 ms	7992 KB	Output is correct
8	Correct	10 ms	8028 KB	Output is correct
9	Correct	6 ms	7772 KB	Output is correct
10	Correct	6 ms	7968 KB	Output is correct
11	Incorrect	7 ms	7772 KB	3rd lines differ - on the 89th token, expected: '1', found: '0'
12	Halted	0 ms	0 KB	-