제출 #1114859

#제출 시각아이디문제언어결과실행 시간메모리
1114859ortsac코끼리 (Dancing Elephants) (IOI11_elephants)C++17
26 / 100
9034 ms10832 KiB
//#pragma GCC optimize("O3") #include "elephants.h" #include <bits/stdc++.h> using namespace std; int n, l; vector<int> v; vector<int> po; vector<int> haspo; void init(int N, int L, int X[]) { n = N; l = L; v.resize(n); po.resize(n); haspo.resize(n); for (int i = 0; i < n; i++) { po[i] = i; haspo[i] = i; v[i] = X[i]; } } int update(int i, int y) { if (v[po[i]] < y) { v[po[i]] = y; int lst, qtd = 0; for (int i = 0; i < n; i++) { if ((i < (n - 1)) && (v[i] > v[i + 1])) { swap(v[i], v[i + 1]); swap(po[haspo[i]], po[haspo[i + 1]]); swap(haspo[i], haspo[i + 1]); } if ((i == 0) || (v[i] > (lst + l))) { lst = v[i]; qtd++; } } return qtd; } else { v[po[i]] = y; int lst, qtd = 0; for (int i = n - 1; i >= 0; i--) { if ((i > 0) && (v[i] < v[i - 1])) { swap(v[i], v[i - 1]); swap(po[haspo[i]], po[haspo[i - 1]]); swap(haspo[i], haspo[i - 1]); } if ((i == (n - 1)) || (v[i] < (lst - l))) { lst = v[i]; qtd++; } } return qtd; } }

컴파일 시 표준 에러 (stderr) 메시지

elephants.cpp: In function 'int update(int, int)':
elephants.cpp:51:42: warning: 'lst' may be used uninitialized in this function [-Wmaybe-uninitialized]
   51 |       if ((i == (n - 1)) || (v[i] < (lst - l))) {
      |                                     ~~~~~^~~~
#Verdict Execution timeMemoryGrader output
Fetching results...
#Verdict Execution timeMemoryGrader output
Fetching results...
#Verdict Execution timeMemoryGrader output
Fetching results...
#Verdict Execution timeMemoryGrader output
Fetching results...
#Verdict Execution timeMemoryGrader output
Fetching results...