Submission #1136681

#	TimeUTC-0	Username	Problem	Language	Result	Execution time	Memory
1136681	2025-01-16 20:04:16	mnbvcxz123	Newspapers (CEOI21_newspapers)	C++20	100 / 100	1 ms	328 KiB

newspapers

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#include <bits/stdc++.h>
using namespace std;
typedef long long lint;
typedef pair<int, int> pi;
#define all(v) (v).begin(), (v).end()
#define sz(v) ((int)(v).size())
const int MAXN = 1005;
int n, m;
vector<int> gph[MAXN];
int par[MAXN], chk[MAXN], inpath[MAXN];
pi dfs(int x, int p = -1){
  pi ret(0, x);
  for(auto &y : gph[x]){
    if(y != p){
      par[y] = x;
      auto z = dfs(y, x);
      z.first++;
      ret = max(ret, z);
    }
  }
  return ret;
}
int main(){
  scanf("%d %d",&n,&m);
  if(m != n - 1){
    puts("NO");
    return 0;
 
 
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Compilation message (stderr)

newspapers.cpp: In function 'int main()':
newspapers.cpp:27:14: warning: ignoring return value of 'int scanf(const char*, ...)' declared with attribute 'warn_unused_result' [-Wunused-result]
   27 |         scanf("%d %d",&n,&m);
      |         ~~~~~^~~~~~~~~~~~~~~

• Subtask 1: 12 / 12
• Subtask 2: 8 / 8
• Subtask 3: 80 / 80