Submission #977152

#	Time	Username	Problem	Language	Result	Execution time	Memory
977152		Isam	Money (IZhO17_money)	C++17	0 / 100	1 ms	348 KiB

money

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

#define eb emplace_back

constexpr int sz = 1e6 + 6;

constexpr int inf = (int)1E9 + 7;

int n, a[sz], ans;

vector<pair<vector<int>, pair<int, int>>> vos;

signed main(){
	ios_base::sync_with_stdio(0), cin.tie(0);
	cin >> n;
	for(register int i = 1; i <= n; ++i){
		cin >> a[i];
	}
	
	int l(1);
	
	a[n+1] = -inf;
	
	for(register int i = 1; i <= n + 1; ++i){
		
		if(a[i] < a[i-1]){
			
			vector<int> opi;
			
			for(register int j = l; j < i; ++j){
				opi.eb(a[j]);
			}
			
			vos.eb((pair<vector<int>, pair<int, int>>){opi, {l, i-1}});
			
			++ans;
			
			l = i;
		}
		
	}

//	for(auto to : vos){
//		
//		for(auto too : to) cerr << too << ' ';
//		cout << '\n';
//	}
	
	for(auto to : vos){
		
		pair<int, int> ro = to.second;
		
		int l = ro.first, r = ro.second;
		
		int lo = a[l], hi = a[r];
		
		for(register int i = 1; i < l; ++i){
			if(a[i] > lo && a[i] < hi){
				lo = a[i];
				++ans;
			}
		}
		
		
		
	}
	
	
cout << ans << '\n';

}

Compilation message (stderr)

money.cpp: In function 'int main()':
money.cpp:17:19: warning: ISO C++17 does not allow 'register' storage class specifier [-Wregister]
   17 |  for(register int i = 1; i <= n; ++i){
      |                   ^
money.cpp:25:19: warning: ISO C++17 does not allow 'register' storage class specifier [-Wregister]
   25 |  for(register int i = 1; i <= n + 1; ++i){
      |                   ^
money.cpp:31:21: warning: ISO C++17 does not allow 'register' storage class specifier [-Wregister]
   31 |    for(register int j = l; j < i; ++j){
      |                     ^
money.cpp:58:20: warning: ISO C++17 does not allow 'register' storage class specifier [-Wregister]
   58 |   for(register int i = 1; i < l; ++i){
      |                    ^

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