Submission #922199

#	Time	Username	Problem	Language	Result	Execution time	Memory
922199		Isam	Pismo (COCI18_pismo)	C++17	70 / 70	15 ms	1704 KiB

pismo

#include<bits/stdc++.h>

using namespace std;

constexpr int sz = 1e5 + 6;

int n, a[sz];

signed main(){
	ios_base::sync_with_stdio(0), cin.tie(0), cout.tie(0);
	cin >> n;
	for(register int i = 1; i <= n; ++i){
		cin >> a[i];
	}
	
	int ans = (int)(1e9 + 7);
	for(register int i = 1; i <= n; ++i){
		int l = i - 1, r = i + 1, mn = (int)(1e9);
		while(l || r <= n){
			if(a[l] > a[i]) l = 0;
			if(a[r] > a[i]) r = n + 1;
			if(l && r <= n){
				if(a[l] > a[r]){
					mn = min(mn, a[l]);
					ans = min(ans, a[i] - mn);
			        --l;
				}else{
					mn = min(mn, a[r]);
					ans = min(ans, a[i] - mn);
					++r;
				}
			}else if(l){
				mn = min(mn, a[l]);
			    ans = min(ans, a[i] - mn);
			    --l;
		    }else if(r <= n){
		    	mn = min(mn, a[r]);
		    	ans = min(ans, a[i] - mn);
		    	++r;
			}else{
				break;
			}
		}
	//	cout << i << ' ' << ans << '\n';
	}
	cout << ans << '\n';
	
	
}

Compilation message (stderr)

pismo.cpp: In function 'int main()':
pismo.cpp:12:19: warning: ISO C++17 does not allow 'register' storage class specifier [-Wregister]
   12 |  for(register int i = 1; i <= n; ++i){
      |                   ^
pismo.cpp:17:19: warning: ISO C++17 does not allow 'register' storage class specifier [-Wregister]
   17 |  for(register int i = 1; i <= n; ++i){
      |                   ^

• Subtask 1: 70 / 70