제출 #808910

#제출 시각아이디문제언어결과실행 시간메모리
808910OrazB친구 (IOI14_friend)C++14
컴파일 에러
0 ms0 KiB
#include <bits/stdc++.h> #include "friend.h" using namespace std; #define all(x) (x).begin(), (x).end() #define ll long long int #define pii pair <int, int> #define pb push_back #define ff first #define ss second const int N = 1e5+5; int c[N], cur[2]; ll mx = 0; vector<int> E[N]; void bit(int x, int n, int A[]){ if (x == n){ ll sum = 0; for (int i = 0; i < n; i++){ if (c[i]){ for (auto j : E[i]) if (c[j]) return; sum += A[i]; } } mx = max(mx, sum); return; } for (int i = 0; i < 2; i++){ c[x] = i; bit(x+1, n, A); } } void dfs(int nd, int pr, int t){ cur[t] += A[nd]; for (auto i : E[nd]){ if (i != pr) dfs(i, nd, !t); } } int findSample(int n, int A[], int u[], int v[]){ int sub0 = 0, sub1 = 0, sub2 = 0; int sum = 0; for (int i = 0; i < n; i++) sum += A[i]; for (int i = 1; i < n; i++){ if (v[i] == 2) sub2 = 1; if (v[i] == 0) sub0 = 1; if (v[i] == 1) sub1 = 1; if (v[i] == 1 or v[i] == 2){ for (auto j : E[u[i]]){ E[i].pb(j); E[j].pb(i); } } if (v[i] == 0 or v[i] == 2){ E[i].pb(u[i]); E[u[i]].pb(i); } } if (!sub0 and !sub2) return sum; if (!sub0 and !sub1) return *max_element(A, A+n); dfs(0, -1); if (!sub1 and !sub2) return max(cur[0], cur[1]); bit(0, n, A); return mx; } // int main () // { // ios::sync_with_stdio(false); // cin.tie(0); // int n; // cin >> n; // int A[n], a[n], b[n]; // for (int i = 0; i < n; i++) cin >> A[i]; // for (int i = 1; i < n; i++) cin >> a[i] >> b[i]; // cout << findSample(n, A, a, b); // }

컴파일 시 표준 에러 (stderr) 메시지

friend.cpp: In function 'void dfs(int, int, int)':
friend.cpp:34:12: error: 'A' was not declared in this scope
   34 |  cur[t] += A[nd];
      |            ^
friend.cpp: In function 'int findSample(int, int*, int*, int*)':
friend.cpp:61:11: error: too few arguments to function 'void dfs(int, int, int)'
   61 |  dfs(0, -1);
      |           ^
friend.cpp:33:6: note: declared here
   33 | void dfs(int nd, int pr, int t){
      |      ^~~