제출 #831143

#	제출 시각UTC-0	아이디	문제	언어	결과	실행 시간	메모리
831143	2023-08-19 19:32:43	pera	Exam (eJOI20_exam)	C++17	48 / 100	99 ms	28104 KiB

exam

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#include<bits/stdc++.h>
using namespace std;
 
#define int long long
 
const int N = 2e5 + 1;
vector<int> t(4 * N) , x(4 * N) , a(N) , b(N) , L(N) , R(N);
map<int , int> M;
void up(int v , int l ,int r , int p , int x){
  if(l == r){
    t[v] = x;
    return;
  }
  int m = (l + r) / 2;
  if(p <= m) up(v * 2 , l , m , p , x);
  else up(v * 2 + 1 , m + 1 , r , p , x);
  t[v] = max(t[v * 2] , t[v * 2 + 1]);
}
int g(int v , int l , int r , int L , int R){
  if(l > r || r < L || l > R) return 0;
  if(L <= l && r <= R) return t[v];
  int m = (l + r) / 2;
  return max(g(v * 2 , l , m , L , R) , g(v * 2 + 1 , m + 1 , r , L , R));
}
 
main(){
  ios::sync_with_stdio(0);
 
 
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컴파일 시 표준 에러 (stderr) 메시지

exam.cpp:29:1: warning: ISO C++ forbids declaration of 'main' with no type [-Wreturn-type]
   29 | main(){
      | ^~~~
exam.cpp: In function 'int main()':
exam.cpp:41:14: warning: comparison of integer expressions of different signedness: 'std::map<long long int, long long int>::size_type' {aka 'long unsigned int'} and 'long long int' [-Wsign-compare]
   41 |  if(M.size() == n){
      |     ~~~~~~~~~^~~~

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