제출 #168601

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
168601		Gurban	Money (IZhO17_money)	C++14	0 / 100	2 ms	376 KiB

money

#include <bits/stdc++.h>

#define pb push_back
#define ss second
#define ff first
#define N 2000006
#define inf 1000000009
#define ll long long
#define mid(a,b) (a+b)/2

using namespace std;

int n,a[N],sub,vis[N],pos,mn = 1e9;
map<int,int> p;
vector <pair<int,int>> v;

void fn(int ind,int pr){
	if(p[ind] == 0)
		return;
	if(vis[p[ind]])
		return;
	if(ind + 1 != p[ind]) sub++;
	if(ind + 1 != p[ind] and ((a[ind + 1] > a[ind] and a[ind + 1] <= pr) or a[p[ind]] == a[ind + 1])){
		vis[ind + 1] = 1;
		pr = a[ind + 1];
		fn(ind + 1,1e9);
	}
	fn(p[ind],pr);
}

int main()
{
	scanf("%d",&n);
	for(int i = 1;i <= n;i++){
		scanf("%d",&a[i]);
		v.pb({a[i],i});
		if(a[i] < mn){
			mn = a[i];
			pos = i;
		}
	}
	sort(v.begin(),v.end());
	for(int i = 0;i < v.size() - 1;i++)
		p[v[i].ss] = v[i + 1].ss;
	a[n + 1] = -1e9;
	sub++;
	fn(pos,1e9);
	printf("%d",sub);
}

컴파일 시 표준 에러 (stderr) 메시지

money.cpp: In function 'int main()':
money.cpp:43:18: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
  for(int i = 0;i < v.size() - 1;i++)
                ~~^~~~~~~~~~~~~~
money.cpp:33:7: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
  scanf("%d",&n);
  ~~~~~^~~~~~~~~
money.cpp:35:8: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
   scanf("%d",&a[i]);
   ~~~~~^~~~~~~~~~~~

• Subtask 1: 0 / 9
• Subtask 2: 0 / 16
• Subtask 3: 0 / 20
• Subtask 4: 0 / 55