Submission #1100198

#	Time	Username	Problem	Language	Result	Execution time	Memory
1100198		KasymK	Money (IZhO17_money)	C++17	100 / 100	893 ms	58188 KiB

money

#include "bits/stdc++.h"
using namespace std;
#define ff first
#define ss second
#define all(v) v.begin(), v.end()
#define ll long long
#define pb push_back
#define pii pair<int, int>
#define pli pair<ll, int>
#define pll pair<ll, ll>
#define tr(i, c) for(auto i = c.begin(); i != c.end(); ++i)
#define wr puts("----------------")
template<class T>bool umin(T& a,T b){if(a>b){a=b;return 1;}return 0;}
template<class T>bool umax(T& a,T b){if(a<b){a=b;return 1;}return 0;}
const int N = 1e6+6;
const int INF = 1e9;
int a[N];

int main(){
	int n;
	scanf("%d", &n);
	for(int i = 1; i <= n; ++i)
		scanf("%d", a+i);
	set<int> s;
	s.insert(INF);
	int answer = 0;
	int i = 1;
	while(i <= n){
		int mx = *s.upper_bound(a[i]);
		s.insert(a[i]);
		while(i+1 <= n and a[i] <= a[i+1] and a[i+1] <= mx){
			i++;
			s.insert(a[i]);
		}
		i++, answer++;
	}
	printf("%d\n", answer);
	return 0;
}

Compilation message (stderr)

money.cpp: In function 'int main()':
money.cpp:21:7: warning: ignoring return value of 'int scanf(const char*, ...)' declared with attribute 'warn_unused_result' [-Wunused-result]
   21 |  scanf("%d", &n);
      |  ~~~~~^~~~~~~~~~
money.cpp:23:8: warning: ignoring return value of 'int scanf(const char*, ...)' declared with attribute 'warn_unused_result' [-Wunused-result]
   23 |   scanf("%d", a+i);
      |   ~~~~~^~~~~~~~~~~

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