Submission #122553

#	Time	Username	Problem	Language	Result	Execution time	Memory
122553		SirCeness	장난감 기차 (IOI17_train)	C++14	0 / 100	11 ms	2816 KiB

train

#include <bits/stdc++.h>

#define pb push_back
#define mp make_pair
using namespace std;
typedef long long ll;

list<int> adj[50004];

vector<int> who_wins(vector<int> a, vector<int> r, vector<int> u, vector<int> v) {
	for (int i = 0; i < u.size(); i++){
		adj[u[i]].pb(v[i]);
	}
	vector<int> ans(a.size());
	for (int i = a.size()-1; i >= 0; i--){
		int kendine = 0;
		int ileri = 0;
		for (list<int>::iterator it = adj[i].begin(); it != adj[i].end(); ++it){
			if (*it == i) kendine = 1;
			if (*it == i+1) ileri = 1;
		}
		if (kendine){
			if (a[i] == 1 && r[i] == 1){
				ans[i] = 1;
				continue;
			} else if (a[i] == 0 && r[i] == 0){
				ans[i] = 0;
				continue;
			}
		}
		if (!ileri){
			if (r[i] == 0) ans[i] = 0;
			else if (r[i] == 1) ans[i] = 1;
			break;
		} else {
			assert(i+1 != ans.size());
			ans[i] = ans[i+1];
		}
	}
	return ans;
	
}

Compilation message (stderr)

train.cpp: In function 'std::vector<int> who_wins(std::vector<int>, std::vector<int>, std::vector<int>, std::vector<int>)':
train.cpp:11:20: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
  for (int i = 0; i < u.size(); i++){
                  ~~^~~~~~~~~~
In file included from /usr/include/c++/7/cassert:44:0,
                 from /usr/include/x86_64-linux-gnu/c++/7/bits/stdc++.h:33,
                 from train.cpp:1:
train.cpp:36:15: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
    assert(i+1 != ans.size());
           ~~~~^~~~~~~~~~~~~

• Subtask 1: 0 / 5
• Subtask 2: 0 / 10
• Subtask 3: 0 / 11
• Subtask 4: 0 / 11
• Subtask 5: 0 / 12
• Subtask 6: 0 / 51