Submission #1077970

#	Time	Username	Problem	Language	Result	Execution time	Memory
1077970		Acanikolic	Weighting stones (IZhO11_stones)	C++14	0 / 100	1029 ms	1104 KiB

stones

#include <bits/stdc++.h>  

#define int long long 

#define pb push_back
 
#define F first
 
#define S second
 
using namespace std;
 
const int N = 1e5 + 10;
 
const int mod = 1e9 + 7;
 
const int inf = 1e9;

int niz[N];

signed main() {
    ios_base::sync_with_stdio(false);
    cin.tie(NULL);
 	
 	int n;
 	cin >> n;
 	vector<int>a,b;
 	for(int i = 1; i <= n; i++) {
 		int x,y;
 		cin >> x >> y;
 		x = n - x + 1;
 		if(y == 1) niz[x]++;
 		else niz[x]--;
 		int s = 0,mn = inf,mx = -inf;
 		for(int j = 0; j < N; j++) {
 			s += niz[j];
 			mn = min(mn,s);
 			mx = max(mx,s);
 		}
 		if(mn >= 0) {
 			cout << ">\n";
 		}else if(mx <= 0) {
 			cout << "<\n";
 		}else {
 			cout << "?\n";
 		}
 	}
    return 0;
}

• Subtask 1: 0 / 100