Submission #375361

#	Time	Username	Problem	Language	Result	Execution time	Memory
375361		muhi1112	Po (COCI21_po)	C++17	20 / 70	61 ms	4588 KiB

Main

#include <bits/stdc++.h>
using namespace std;

#define f1 first
#define s2 second
#define INF 99999999
#define ll long long
#define pb push_back
#define fri(a) freopen(a,"r",stdin)
#define fro(a) freopen(a,"w",stdout)
const int N=2e6+5;

vector<int>v;
set<int>s;
ll n,dizi[N],ans;

void solve(){
	cin>>n;
	for(int i=0;i<n;i++){
		cin>>dizi[i];
	}
	v.pb(-1);
	for(int i=1;i<n-1;i++){
		if(dizi[i-1]>dizi[i] && dizi[i]<dizi[i+1]){
			v.pb(i);
		}
	}
	v.pb(n-1);
	for(int i=1;i<v.size();i++){
		//cout<<v[i]<<endl;
		for(int j=v[i-1]+1;j<=v[i];j++){
			s.insert(dizi[j]);
		}
		ans+=s.size();
		s.clear();
	}
	cout<<ans<<endl;
}

int main(){

	//fri("in.txt");
	//fro("out.txt");
	solve();

	return 0;
}

Compilation message (stderr)

Main.cpp: In function 'void solve()':
Main.cpp:29:15: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   29 |  for(int i=1;i<v.size();i++){
      |              ~^~~~~~~~~

• Subtask 1: 20 / 70