제출 #815156

#	제출 시각UTC-0	아이디	문제	언어	결과	실행 시간	메모리
815156	2023-08-08 12:47:34	jajco	Jail (JOI22_jail)	C++17	72 / 100	5116 ms	962908 KiB

jail

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#include <ios>
#include <vector>
#include <algorithm>
#include <functional>
#define REP(i, n) for (int i=0; i<n; ++i)
typedef std::vector <int> vi;
int main(){
    int q;
    scanf("%d", &q);
    while (q--){
        int n;
        scanf("%d", &n);
        std::vector <vi> pol(n+1, vi());
        bool liniow=1;
        REP(i, n-1){ // wczytanie grafu
            int p,k;
            scanf("%d%d", &p, &k);
            if (p!=k-1)
                liniow=0;
            pol[p].emplace_back(k);
            pol[k].emplace_back(p);
        }
        vi gl(n+1),ojc(n+1);
        { // glebokosci
            std::function <void(int, int, int)> DFS=[&](
                    int i, int o, int g){
                ojc[i]=o;
                gl[i]=g;
                for (int j : pol[i])
                    if (j!=o)
 
 
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컴파일 시 표준 에러 (stderr) 메시지

jail.cpp: In function 'int main()':
jail.cpp:14:14: warning: variable 'liniow' set but not used [-Wunused-but-set-variable]
   14 |         bool liniow=1;
      |              ^~~~~~
jail.cpp:120:9: warning: label 'fin' defined but not used [-Wunused-label]
  120 |         fin:
      |         ^~~
jail.cpp:9:10: warning: ignoring return value of 'int scanf(const char*, ...)' declared with attribute 'warn_unused_result' [-Wunused-result]
    9 |     scanf("%d", &q);
      |     ~~~~~^~~~~~~~~~
jail.cpp:12:14: warning: ignoring return value of 'int scanf(const char*, ...)' declared with attribute 'warn_unused_result' [-Wunused-result]
   12 |         scanf("%d", &n);
      |         ~~~~~^~~~~~~~~~
jail.cpp:17:18: warning: ignoring return value of 'int scanf(const char*, ...)' declared with attribute 'warn_unused_result' [-Wunused-result]
   17 |             scanf("%d%d", &p, &k);
      |             ~~~~~^~~~~~~~~~~~~~~~
jail.cpp:36:14: warning: ignoring return value of 'int scanf(const char*, ...)' declared with attribute 'warn_unused_result' [-Wunused-result]
   36 |         scanf("%d", &m);
      |         ~~~~~^~~~~~~~~~
jail.cpp:39:18: warning: ignoring return value of 'int scanf(const char*, ...)' declared with attribute 'warn_unused_result' [-Wunused-result]
   39 |             scanf("%d%d", &pocz[i], &kon[i]);
      |             ~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~

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