제출 #923017

#	제출 시각UTC-0	아이디	문제	언어	결과	실행 시간	메모리
923017	2024-02-06 12:38:17	allin27x	곤돌라 (IOI14_gondola)	C++17	100 / 100	56 ms	5968 KiB

gondola

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#include <bits/stdc++.h>
using namespace std;
#include "gondola.h"
#define int long long
const int mod = 1e9+9;
int pw(int a, int p){
  if (p==0) return 1;
  if (p&1) return (a*pw(a, p-1)) %mod;
  int r = pw(a,p/2)%mod;
  return (r*r)%mod;
}
signed valid(signed n, signed S[]){
  set<int> s; for(int i=0; i<n; i++) s.insert(S[i]); if (s.size()<n) return 0;
  int ind = -1;
  for (int i=0; i<n; i++) if (S[i] <= n) {ind = i; break;}
  if (ind == -1) return 1;
  int t = S[ind];
  for (int i=ind+1; i!=ind; i++, i%=n){
    t++; if (t==n+1) t = 1;
    if (S[i] <= n && S[i] != t) return 0;
  }
  return 1;
}
 
 
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컴파일 시 표준 에러 (stderr) 메시지

gondola.cpp: In function 'int valid(int, int*)':
gondola.cpp:18:65: warning: comparison of integer expressions of different signedness: 'std::set<long long int>::size_type' {aka 'long unsigned int'} and 'int' [-Wsign-compare]
   18 |  set<int> s; for(int i=0; i<n; i++) s.insert(S[i]); if (s.size()<n) return 0;
      |                                                         ~~~~~~~~^~

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