# | Time | Username | Problem | Language | Result | Execution time | Memory |
---|---|---|---|---|---|---|---|
831105 | PanosPask | Coins (IOI17_coins) | C++14 | 2 ms | 1080 KiB |
This submission is migrated from previous version of oj.uz, which used different machine for grading. This submission may have different result if resubmitted.
#include "coins.h"
std::vector<int> coin_flips(std::vector<int> b, int c) {
std::vector<int> flips(1);
int N = 64;
int xorsum = 0;
for (int i = 0; i < N; i++) {
if (b[i])
xorsum = xorsum ^ i;
}
flips[0] = xorsum ^ c;
}
int find_coin(std::vector<int> b) {
int xorsum = 0;
int N=64;
for (int i = 0; i < N; i++)
if (b[i])
xorsum = xorsum ^ i;
return xorsum;
}
Compilation message (stderr)
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