| # | 제출 시각 | 아이디 | 문제 | 언어 | 결과 | 실행 시간 | 메모리 |
|---|---|---|---|---|---|---|---|
| 1219194 | LM1 | Coins (IOI17_coins) | C++20 | 0 ms | 0 KiB |
#include<bits/stdc++.h>
#define int long long
#define pii pair<int,int>
#define ff first
#define ss second
#define pb push_back
#define vi vector<int>
#define fr(i,ii,iii) for(int i=ii;i<iii;i++)
#include "coins.h"
using namespace std;
vi coin_flips(vi b,int c){
vi v;
int x=c;
fr(i,0,b.size())if(b[i])x^=i;
v.pb(x);
return v;
}
int find_coin(vi b){
int ans=0;
fr(i,0,b.size())if(b[i])ans^=i;
return ans;
}
static string run_test() {
int c;
cin >> c;
vector<int> b(64);
for (int i = 0; i < 8; i++) {
string s;
cin >> s;
for (int j = 0; j < 8; j++) {
b[i * 8 + j] = int(s[j] - '0');
}
}
vector<int> flips = coin_flips(b, c);
if ((int)flips.size() == 0) {
return "0 turn overs";
}
for (int i = 0; i < (int)flips.size(); i++) {
if (flips[i] < 0 || flips[i] > 63) {
return "cell number out of range";
}
b[flips[i]] = 1 - b[flips[i]];
}
int coin = find_coin(b);
if (coin != c) {
return "wrong coin";
}
return "ok";
}
int main() {
int tests;
cin >> tests;
for (int t = 1; t <= tests; t++) {
string result = run_test();
cout << "test #" << t << ": " << result << endl;
}
return 0;
}