Submission #1219197

#TimeUsernameProblemLanguageResultExecution timeMemory
1219197LM1Coins (IOI17_coins)C++20
100 / 100
9 ms584 KiB
#include<bits/stdc++.h> using namespace std; #include "coins.h" vector<int>coin_flips(vector<int>b,int c){ vector<int>v; int x=c; for(int i=0;i<b.size();i++)if(b[i])x^=i; v.push_back(x); return v; } int find_coin(vector<int>b){ int ans=0; for(int i=0;i<b.size();i++)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; //}
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