제출 #197398

#제출 시각아이디문제언어결과실행 시간메모리
197398Ahmed_SelimArranging Shoes (IOI19_shoes)C++14
0 / 100
23 ms19576 KiB
#include <iostream> #include <cstring> #include <vector> #include <set> #include <algorithm> #define MOD 1000000007 using namespace std; long long int cvp, n; vector<int> konum[2][200010]; long long int count_swaps(vector<int> S){ for (n = 0; S[n] ; ++n){ if(S[n]<0)konum[1][-S[n]].push_back(n); else konum[0][S[n]].push_back(n); } for (int i = 0; i < n; i+=2){ if(S[i]<0){ int j=0; while(konum[0][-S[i]][j]<0)j++; int index=konum[0][-S[i]][j]; while(index!=i+1){ swap(S[index], S[index-1]); cvp++; } konum[0][-S[i]][j]=-1; }else{ int j=0; while(konum[0][S[i]][j]<0)j++; int index=konum[0][S[i]][j]; while(index!=i+1){ swap(S[index], S[index-1]); cvp++; } konum[0][S[i]][j]=-1; cvp++; } } return cvp; }
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