Submission #594052

#	Time	Username	Problem	Language	Result	Execution time	Memory
594052		shezitt	Coins (IOI17_coins)	C++14	25 / 100	9 ms	1540 KiB

coins

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

using namespace std;

// subtask 4

vector<int> coin_flips(vector<int> b, int c) {
	vector<int> flips;
	string s;
	int cc = c;
	while(cc){
		s = (char)(cc%2+'0') + s;
		cc /= 2;
	}
	while(int(s.size()) < 8){
		s = '0' + s;
	}
	for(int i=0; i<8; ++i){
		if(s[i] == '1' && !b[i]){
			flips.push_back(i);
		} else if(s[i] == '0' && b[i]){
			flips.push_back(i);
		}
	}
	if(int(flips.size()) == 0){
		flips.push_back(63);
	}
	return flips;
}

int find_coin(vector<int> b) {
	int ans = 0;
	for(int i=7; i>=0; --i){
		if(b[i]){
			ans += 1<<(7-i);
		}
	}
	return ans;
}

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