제출 #384900

#	제출 시각^UTC-0	아이디	문제	언어	결과	실행 시간	메모리
384900	2021-04-02 14:59:17	AdiZer0	Deblo (COCI18_deblo)	C++17	컴파일 에러	0 ms	0 KiB

이 제출은 이전 버전의 oj.uz에서 채점하였습니다. 현재는 제출 당시와는 다른 서버에서 채점을 하기 때문에, 다시 제출하면 결과가 달라질 수도 있습니다.

deblo

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#include <bits/stdc++.h>
#define pb push_back
#define whole(x) x.begin(), x.end()
#define sz(x) (int)x.size()
using namespace std;
typedef long long ll;
typedef long double ld;
const int N = (int)1e5 + 7;
const int INF = (int)1e9 + 7;
const ll linf = (ll)1e18 + 1;
int c[N], ans[27], dp[N][27][2];
vector<int> g[N]; 
  
void dfs(int v, int par = 1) { 
    for (int bit = 0; bit < 26; ++bit) { 
        if ((c[v] >> bit) & 1) { 
            ++ans;
            dp[v][bit][1] = 1;
        } else dp[v][bit][0] = 1;
    }
    for (int to : g[v]) { 
        if (par == to) continue;
        dfs(to, v);
        for (int bit = 0; bit < 26; ++bit) { 
            ans[bit] += (dp[v][bit][1] * 1ll * dp[to][bit][0]);
 
 
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컴파일 시 표준 에러 (stderr) 메시지

deblo.cpp: In function 'void dfs(int, int)':
deblo.cpp:22:15: error: lvalue required as increment operand
   22 |             ++ans;
      |               ^~~
deblo.cpp: In function 'int main()':
deblo.cpp:44:18: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
   44 |     int n; scanf ("%d", &n);
      |            ~~~~~~^~~~~~~~~~
deblo.cpp:45:40: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
   45 |     for (int i = 1; i <= n; ++i) scanf ("%d", c + i);
      |                                  ~~~~~~^~~~~~~~~~~~~
deblo.cpp:47:25: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
   47 |         int u, v; scanf ("%d %d", &u, &v);
      |                   ~~~~~~^~~~~~~~~~~~~~~~~