제출 #930544

#	제출 시각UTC-0	아이디	문제	언어	결과	실행 시간	메모리
930544	2024-02-20 05:59:16	Ghulam_Junaid	Joker (BOI20_joker)	C++17	14 / 100	101 ms	38460 KiB

Joker

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#include <bits/stdc++.h>
using namespace std;
const int N = 2e5 + 3;
int n, m, q, vis_nq[N], par[N], col[N];
vector<pair<int, int>> g[N], atl[2005];
pair<int, int> edge[N];
vector<int> S[N];
bool ans[N];
int root(int v){
    return (par[v] == -1 ? v : par[v] = root(par[v]));
}
inline bool merge(int u, int v){
    int r1 = root(u);
    int r2 = root(v);
    if (r1 == r2)
        return (col[u] != col[v]);
    if (S[r2].size() > S[r1].size())
        swap(r1, r2);
    int take = 0;
    if (col[u] == col[v])
        take = 3;
    for (int x : S[r2]){
        col[x] ^= take;
 
 
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컴파일 시 표준 에러 (stderr) 메시지

Joker.cpp: In function 'int main()':
Joker.cpp:39:10: warning: ignoring return value of 'int scanf(const char*, ...)' declared with attribute 'warn_unused_result' [-Wunused-result]
   39 |     scanf("%d%d%d", &n, &m, &q);
      |     ~~~~~^~~~~~~~~~~~~~~~~~~~~~
Joker.cpp:42:14: warning: ignoring return value of 'int scanf(const char*, ...)' declared with attribute 'warn_unused_result' [-Wunused-result]
   42 |         scanf("%d%d", &u, &v);
      |         ~~~~~^~~~~~~~~~~~~~~~
Joker.cpp:52:14: warning: ignoring return value of 'int scanf(const char*, ...)' declared with attribute 'warn_unused_result' [-Wunused-result]
   52 |         scanf("%d%d", &l, &r);
      |         ~~~~~^~~~~~~~~~~~~~~~

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