Submission #413054

#	Submission time	Handle	Problem	Language	Result	Execution time	Memory
413054	2021-05-28T07:36:18 Z	조영욱(#7624)	Toy Train (IOI17_train)	C++14	0 / 100	11 ms	1812 KB

train

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

vector<int> adj[5000];
int deg[5000];
int outd[5000];
bool vis[5000];
vector<int> rev[5000];
vector<int> rrev[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++) {
        if (r[u[i]]==0&&r[v[i]]==0) {
            adj[u[i]].push_back(v[i]);
            rrev[v[i]].push_back(u[i]);
            deg[v[i]]++;
            outd[u[i]]++;
        }
    }
    for(int i=0;i<m;i++){
        rev[v[i]].push_back(u[i]);
    }
    queue<int> q;
    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]--;
            outd[now]--;
            if (deg[nt]==0) {
                q.push(nt);
            }
        }
    }
    for(int i=0;i<n;i++) {
        if (outd[i]==0) {
            q.push(i);
        }
    }
    while (!q.empty()) {
        int now=q.front();
        q.pop();
        cnt++;
        for(int i=0;i<rrev[now].size();i++) {
            int nt=rrev[now][i];
            outd[nt]--;
            deg[now]--;
            if (outd[nt]==0) {
                q.push(nt);
            }
        }
    }
    for(int i=0;i<n;i++) {
        if (deg[i]!=0) {
            q.push(i);
            vis[i]=true;
        }
    }
    while (!q.empty()) {
        int now=q.front();
        q.pop();
        for(int i=0;i<rev[now].size();i++) {
            int nt=rev[now][i];
            if (!vis[nt]) {
                vis[nt]=true;
                q.push(nt);
            }
        }
    }
    vector<int> ret(n);
    for(int i=0;i<n;i++) {
        if (vis[i]) {
            ret[i]=0;
        }
        else {
            ret[i]=1;
        }
    }
    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:37:22: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   37 |         for(int i=0;i<adj[now].size();i++) {
      |                     ~^~~~~~~~~~~~~~~~
train.cpp:55:22: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   55 |         for(int i=0;i<rrev[now].size();i++) {
      |                     ~^~~~~~~~~~~~~~~~~
train.cpp:73:22: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   73 |         for(int i=0;i<rev[now].size();i++) {
      |                     ~^~~~~~~~~~~~~~~~

Subtask #1
0 / 5.0

#	Verdict	Execution time	Memory	Grader output
1	Incorrect	8 ms	1124 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	588 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	9 ms	1740 KB	Output is correct
2	Correct	9 ms	1812 KB	Output is correct
3	Correct	11 ms	1736 KB	Output is correct
4	Incorrect	10 ms	1624 KB	3rd lines differ - on the 1st token, expected: '1', found: '0'
5	Halted	0 ms	0 KB	-