제출 #994314

#제출 시각아이디문제언어결과실행 시간메모리
994314cpdreamerArranging Shoes (IOI19_shoes)C++17
10 / 100
1097 ms3164 KiB
#include "shoes.h" #include <bits/stdc++.h> using namespace std; long long count_swaps(vector<int> s) { int n=(int)s.size(); long long c=0; for(int i=0;i<n-1;i++){ if(i%2==0){ if(s[i]<0) continue; int index; for(int j=i+1;j<n;j++){ if(s[j]<0){ index=j; break; } } for(int j=index;j>i;j--){ swap(s[j],s[j-1]); c++; } } else{ if(s[i]==-s[i-1]) continue; int index; for(int j=i+1;j<n;j++){ if(s[j]==-s[i-1]){ index=j; break; } } for(int j=index;j>i;j--){ swap(s[j],s[j-1]); c++; } } } return c; }

컴파일 시 표준 에러 (stderr) 메시지

shoes.cpp: In function 'long long int count_swaps(std::vector<int>)':
shoes.cpp:34:25: warning: 'index' may be used uninitialized in this function [-Wmaybe-uninitialized]
   34 |                 swap(s[j],s[j-1]);
      |                         ^
shoes.cpp:19:25: warning: 'index' may be used uninitialized in this function [-Wmaybe-uninitialized]
   19 |                 swap(s[j],s[j-1]);
      |                         ^
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