Submission #593302

#	Time	Username	Problem	Language	Result	Execution time	Memory
593302		AlperenT	Toy Train (IOI17_train)	C++17	5 / 100	5 ms	852 KiB

train

#include <bits/stdc++.h>
#include "train.h"

using namespace std;

vector<int> who_wins(vector<int> a, vector<int> r, vector<int> u, vector<int> v){
	int n = a.size();

	vector<bool> isself(n), isnext(n);

	for(int i = 0; i < u.size(); i++){
		if(u[i] == v[i]) isself[u[i]] = true;
		else if(u[i] + 1 == v[i]) isnext[u[i]] = true;
	}

	vector<int> ans(n);

	for(int i = n - 1; i >= 0; i--){
		if(a[i]){
			if(isself[i] && r[i]) ans[i] = true;
			if(isnext[i] && ans[i + 1]) ans[i] = true;
		}
		else{
			ans[i] = true;

			if(isself[i] && !r[i]) ans[i] = false;
			if(isnext[i] && !ans[i + 1]) ans[i] = false;
		}
	}

	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:11:19: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   11 |  for(int i = 0; i < u.size(); i++){
      |                 ~~^~~~~~~~~~

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