제출 #1319449

#제출 시각아이디문제언어결과실행 시간메모리
1319449nnargizTable Tennis (info1cup20_tabletennis)C++20
컴파일 에러
0 ms0 KiB
#include <bits/stdc++.h> #include <ext/pb_ds/assoc_container.hpp> #include <ext/pb_ds/tree_policy.hpp> #define int long long using namespace __gnu_pbds; using namespace std; const int mod = 1e6 + 3; const int inf = 1e9; const int maxx = 3e6 + 5; const int lg = 26; typedef tree <int, null_type, less_equal <int>, rb_tree_tag, tree_order_statistics_node_update> ordered_multiset; void solve () { int n, k, sum = 0, idx1 = -1, idx2 = -1; cin >> n >> k; vector <int> a(n + k); for (int i = 0; i < n + k; i++) { cin >> a[i]; sum += a[i]; } if (sum % 2) { for (int i = 0; i < n + k; i++) { if (a[i] % 2 && idx == -1) { idx1 = i; idx2 = i; break; } if (a[i] % 2) { idx2 = i; } } } // 1 2 3 4 7 // 1 3 // 3 6 7 8 9 if (a[1] - a[0] > a[n - 1] - a[n - 2]) { if (sum % 2 == 0) { for (int i = 1; i <= n; i++) { cout << a[i] << ' '; } } else { for (int i = 0; i < idx2; i++) { cout << a[i] << ' '; } for (int i = idx2 + 1; i <= n; i++) { cout << a[i] << ' '; } } } else { if (sum % 2 == 0) { for (int i = 0; i < n; i++) { cout << a[i] << ' '; } } else { for (int i = 0; i < idx2; i++) { cout << a[i] << ' '; } for (int i = idx2 + 1; i <= n; i++) { cout << a[i] << ' '; } } } } signed main(){ ios_base::sync_with_stdio(0); cin.tie(0); cout.tie(0); int t = 1; //cin >> t; while (t--) { solve(); } }

컴파일 시 표준 에러 (stderr) 메시지

tabletennis.cpp: In function 'void solve()':
tabletennis.cpp:23:29: error: 'idx' was not declared in this scope; did you mean 'idx2'?
   23 |             if (a[i] % 2 && idx == -1) {
      |                             ^~~
      |                             idx2