Submission #1282049

#	Time	Username	Problem	Language	Result	Execution time	Memory
1282049		nlsosad	Sure Bet (CEOI17_sure)	C++20	Compilation error	0 ms	0 KiB

sure

#include <bits/stdc++.h>
using namespace std;
#define int long long
#define f first
#define s second
using ld = long double;
ld a[100001], b[100001];
signed main(){S
	int n;
	cin >> n;
	for (int i = 1;i<=n;++i){
		cin >> a[i] >> b[i];
	}
	ld res = 0;
	ld l = 0, r = 1e9;
	sort(a+1, a+n+1);
	sort(b+1, b+n+1);
	while(abs(l-r) >= 1e-6){
		ld mid = (l+r)/2.0;
		ld s1 = 0, s2 = 0;
		int t1 = n, t2 = n;
		while(s1 < mid or s2 < mid){
			bool check = false;
			while(s1 < mid and t1 >= 1){
				s1 += a[t1]-1.0;
				check = true;
				s2 -= 1.0;
				t1--;
			}
			while(s2 < mid and t2>= 1){
				s2 += b[t2]-1.0;
				s1 -= 1.0;
				check = true;
				t2--;
			}
			if(!check)break;
		}
		if(s1 >= mid and s2>=mid){
			res = mid;
			l = mid;
		}else r = mid;
	}
	cout << fixed << setprecision(4) << res;
}

Compilation message (stderr)

sure.cpp: In function 'int main()':
sure.cpp:8:15: error: 'S' was not declared in this scope
    8 | signed main(){S
      |               ^
sure.cpp:10:16: error: 'n' was not declared in this scope; did you mean 'yn'?
   10 |         cin >> n;
      |                ^
      |                yn