oj.uz

Submission #17718

# Submission time Handle Problem Language Result Execution time Memory
17718 2016-01-12T09:11:30 Z Adilkhan Weighting stones (IZhO11_stones) C++
100 / 100
 80 ms 23220 KB 
#include <bits/stdc++.h>

#define pb push_back
#define endl "\n"
#define mp make_pair 
#define fi first
#define se second
#define all(x) x.begin(), x.end()
#define fname ""
#define sz(x) (int)(x.size())

typedef long long ll;

using namespace std;

const ll N = (ll)(5e5) + 322;
const ll INF = (ll)(1e9);
const ll mod = (ll)(1e9) + 7;
const double eps = 1e-9;

int n, x[N], y[N], q, s, sum, mn, mx;

int add[N];
pair <int, int> t[N * 4];

void push(int x, int l, int r) {
	if (add[x]) {
		t[x].fi += add[x];
		t[x].se += add[x];
		if (l != r) {
			add[x + x] += add[x];
			add[x + x + 1] += add[x];
		}
		add[x] = 0;
	}			
}

void upd(int x, int tl, int tr, int l, int r, int val) {
	push(x, tl, tr);
	if (l <= tl && tr <= r) {
		add[x] += val;
		push(x, tl, tr);
		return;	
	}
	if (tl > r || tr < l) {
		return;		                  	
	}
	int mid = (tl + tr) / 2;
	upd(x + x, tl, mid, l, r, val);
	upd(x + x + 1, mid + 1, tr, l, r, val);
	t[x].fi = max(t[x + x].fi, t[x + x + 1].fi);
	t[x].se = min(t[x + x].se, t[x + x + 1].se);
}


int main () {
	//freopen(fname".in", "r", stdin);
	//freopen(fname".out", "w", stdout);
	scanf("%d", &n);
	for (int i = 1; i <= n; ++i) {
		scanf("%d%d", &q, &s);
		if (s == 1) {
			upd(1, 1, n, 1, q, 1);
		}else {  
			upd(1, 1, n, 1, q, -1);
		}       
		mx = t[1].fi;                       
		mn = t[1].se;
		if (mn < 0 && mx > 0) {
	  	puts("?");
		}
		if (mn >= 0 && mx >= 0) {
			puts(">");
		}
		if (mn <= 0 && mx <= 0) {
			puts("<");
		}
	}
	return 0;
}

Subtask #1
100.0 / 100.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 23220 KB Output is correct - 73 tokens
2 Correct 0 ms 23220 KB Output is correct - 89 tokens
3 Correct 5 ms 23220 KB Output is correct - 221 tokens
4 Correct 0 ms 23220 KB Output is correct - 21 tokens
5 Correct 0 ms 23220 KB Output is correct - 369 tokens
6 Correct 5 ms 23220 KB Output is correct - 492 tokens
7 Correct 0 ms 23220 KB Output is correct - 945 tokens
8 Correct 6 ms 23220 KB Output is correct - 1237 tokens
9 Correct 0 ms 23220 KB Output is correct - 1105 tokens
10 Correct 12 ms 23220 KB Output is correct - 8921 tokens
11 Correct 43 ms 23220 KB Output is correct - 56110 tokens
12 Correct 80 ms 23220 KB Output is correct - 90207 tokens
13 Correct 71 ms 23220 KB Output is correct - 100000 tokens
14 Correct 70 ms 23220 KB Output is correct - 100000 tokens
15 Correct 67 ms 23220 KB Output is correct - 100000 tokens
16 Correct 64 ms 23220 KB Output is correct - 100000 tokens
17 Correct 68 ms 23220 KB Output is correct - 100000 tokens
18 Correct 58 ms 23220 KB Output is correct - 99999 tokens
19 Correct 65 ms 23220 KB Output is correct - 99999 tokens
20 Correct 69 ms 23220 KB Output is correct - 99999 tokens
21 Correct 79 ms 23220 KB Output is correct - 100000 tokens
22 Correct 70 ms 23220 KB Output is correct - 100000 tokens
23 Correct 78 ms 23220 KB Output is correct - 100000 tokens
24 Correct 64 ms 23220 KB Output is correct - 100000 tokens
25 Correct 68 ms 23220 KB Output is correct - 100000 tokens