Submission #390243

#	Time	Username	Problem	Language	Result	Execution time	Memory
390243		Iwanttobreakfree	Coins (IOI17_coins)	C++17	100 / 100	15 ms	1636 KiB

coins

#include "coins.h"
#include <vector>
using namespace std;
vector<int> coin_flips(vector<int> b, int c) {
	vector<int> flips;
	int flip=0;
	for(int i=0;i<64;i++)if(b[i])flip^=i;
	flip^=c;
	flips.push_back(flip);
    return flips;
}
 
int find_coin(vector<int> b) {
	int sol=0;
	for(int i=0;i<64;i++){
		if(b[i])sol^=i;
	}
	return sol;
}

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