Submission #859293

#	Time	Username	Problem	Language	Result	Execution time	Memory
859293		nguyentunglam	Coins (IOI17_coins)	C++17	10 / 100	8 ms	1940 KiB

coins

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

std::vector<int> coin_flips(std::vector<int> b, int c) {
   vector<int> flips;
   for(int i = 0; i < b.size(); i++) if (i != c && b[i] == 1) flips.push_back(i);
   if (b[c] == 0) flips.push_back(c);
   if (flips.empty()) {
      flips.push_back(0);
      flips.push_back(0);
   }
   return flips;
}

int find_coin(std::vector<int> b) {
    for(int i = 0; i < b.size(); i++) if (b[i]) return i;
    return 0;
}

Compilation message (stderr)

coins.cpp: In function 'std::vector<int> coin_flips(std::vector<int>, int)':
coins.cpp:7:21: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
    7 |    for(int i = 0; i < b.size(); i++) if (i != c && b[i] == 1) flips.push_back(i);
      |                   ~~^~~~~~~~~~
coins.cpp: In function 'int find_coin(std::vector<int>)':
coins.cpp:17:22: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   17 |     for(int i = 0; i < b.size(); i++) if (b[i]) return i;
      |                    ~~^~~~~~~~~~

• Subtask 1: 0 / 10
• Subtask 2: 0 / 15
• Subtask 3: 10 / 10
• Subtask 4: 0 / 15
• Subtask 5: 0 / 50