Submission #413039

#	Submission time	Handle	Problem	Language	Result	Execution time	Memory
413039	2021-05-28T06:41:05 Z	조영욱(#7624)	Toy Train (IOI17_train)	C++14	0 / 100	1352 ms	1556 KB

train

#include "train.h"
#include <bits/stdc++.h>
using namespace std;

vector<int> adj[5000];
vector<int> gph[5000];
bool vis[5000];
int deg[5000];
bool chk[5000];

vector<int> who_wins(vector<int> a, vector<int> r, vector<int> u, vector<int> v) {
    int n=a.size();
    int m=u.size();
    for(int i=0;i<m;i++) {
        gph[u[i]].push_back(v[i]);
    }
    vector<int> ret(n);
    for(int st=0;st<n;st++) {
        if (chk[st]) {
            continue;
        }
        queue<int> q;
        q.push(st);
        memset(vis,0,sizeof(vis));
        vis[st]=true;
        while (!q.empty()) {
            int now=q.front();
            q.pop();
            for(int i=0;i<gph[now].size();i++) {
                int nt=gph[now][i];
                if (vis[nt]) {
                    continue;
                }
                vis[nt]=true;
                q.push(nt);
            }
        }
        for(int i=0;i<n;i++) {
            adj[i].clear();
        }
        memset(deg,0,sizeof(deg));
        for(int i=0;i<m;i++) {
            if (r[u[i]]==0&&r[v[i]]==0&&vis[u[i]]&&vis[v[i]]) {
                adj[u[i]].push_back(v[i]);
                deg[v[i]]++;
            }
        }
        for(int i=0;i<n;i++) {
            if (deg[i]==0) {
                q.push(i);
            }
        }
        int cnt=0;
        while (!q.empty()) {
            int now=q.front();
            q.pop();
            cnt++;
            for(int i=0;i<adj[now].size();i++) {
                int nt=adj[now][i];
                deg[nt]--;
                if (deg[nt]==0) {
                    q.push(nt);
                }
            }
        }
        for(int i=0;i<n;i++) {
            if (deg[i]!=0) {
                chk[i]=true;
                ret[i]=0;
            }
        }
    }
    return ret;
}

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:29:26: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   29 |             for(int i=0;i<gph[now].size();i++) {
      |                         ~^~~~~~~~~~~~~~~~
train.cpp:58:26: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   58 |             for(int i=0;i<adj[now].size();i++) {
      |                         ~^~~~~~~~~~~~~~~~

Subtask #1
0 / 5.0

#	Verdict	Execution time	Memory	Grader output
1	Incorrect	740 ms	972 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	460 KB	3rd lines differ - on the 2nd token, expected: '1', found: '0'
2	Halted	0 ms	0 KB	-

Subtask #3
0 / 11.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	996 ms	1556 KB	Output is correct
2	Correct	720 ms	1412 KB	Output is correct
3	Correct	434 ms	1488 KB	Output is correct
4	Incorrect	1295 ms	1260 KB	3rd lines differ - on the 1st token, expected: '1', found: '0'
5	Halted	0 ms	0 KB	-