#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;
ll n, x[N], y[N], q, s, sum, mn, mx;
ll add[N];
pair <ll, ll> 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 () {
ios_base :: sync_with_stdio (false); cin.tie(0);
//freopen(fname".in", "r", stdin);
//freopen(fname".out", "w", stdout);
cin >> n;
for (int i = 1; i <= n; ++i) {
cin >> 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) {
cout << '?' << endl;
}
if (mn >= 0 && mx >= 0) {
cout << '>' << endl;
}
if (mn <= 0 && mx <= 0) {
cout << '<' << endl;
}
}
return 0;
}
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Incorrect |
4 ms |
44708 KB |
Output isn't correct - 10th words differ - expected: '<', found: '?' |
2 |
Incorrect |
4 ms |
44708 KB |
Output isn't correct - 4th words differ - expected: '>', found: '?' |
3 |
Incorrect |
4 ms |
44708 KB |
Output isn't correct - 3rd words differ - expected: '?', found: '<' |
4 |
Incorrect |
0 ms |
44708 KB |
Output isn't correct - 16th words differ - expected: '<', found: '?' |
5 |
Incorrect |
4 ms |
44708 KB |
Output isn't correct - 8th words differ - expected: '<', found: '?' |
6 |
Incorrect |
0 ms |
44708 KB |
Output isn't correct - 6th words differ - expected: '<', found: '?' |
7 |
Incorrect |
8 ms |
44708 KB |
Output isn't correct - 6th words differ - expected: '<', found: '?' |
8 |
Incorrect |
8 ms |
44708 KB |
Output isn't correct - 13th words differ - expected: '?', found: '>' |
9 |
Incorrect |
0 ms |
44708 KB |
Output isn't correct - 6th words differ - expected: '>', found: '?' |
10 |
Runtime error |
11 ms |
44708 KB |
writev (syscall #20) was called by the program (disallowed syscall) |
11 |
Runtime error |
7 ms |
44708 KB |
writev (syscall #20) was called by the program (disallowed syscall) |
12 |
Runtime error |
11 ms |
44708 KB |
writev (syscall #20) was called by the program (disallowed syscall) |
13 |
Runtime error |
3 ms |
44708 KB |
writev (syscall #20) was called by the program (disallowed syscall) |
14 |
Runtime error |
4 ms |
44708 KB |
writev (syscall #20) was called by the program (disallowed syscall) |
15 |
Runtime error |
7 ms |
44708 KB |
writev (syscall #20) was called by the program (disallowed syscall) |
16 |
Runtime error |
3 ms |
44708 KB |
writev (syscall #20) was called by the program (disallowed syscall) |
17 |
Runtime error |
3 ms |
44708 KB |
writev (syscall #20) was called by the program (disallowed syscall) |
18 |
Runtime error |
3 ms |
44708 KB |
writev (syscall #20) was called by the program (disallowed syscall) |
19 |
Runtime error |
10 ms |
44708 KB |
writev (syscall #20) was called by the program (disallowed syscall) |
20 |
Runtime error |
10 ms |
44708 KB |
writev (syscall #20) was called by the program (disallowed syscall) |
21 |
Runtime error |
3 ms |
44708 KB |
writev (syscall #20) was called by the program (disallowed syscall) |
22 |
Runtime error |
7 ms |
44708 KB |
writev (syscall #20) was called by the program (disallowed syscall) |
23 |
Runtime error |
10 ms |
44708 KB |
writev (syscall #20) was called by the program (disallowed syscall) |
24 |
Runtime error |
0 ms |
44708 KB |
writev (syscall #20) was called by the program (disallowed syscall) |
25 |
Runtime error |
3 ms |
44708 KB |
writev (syscall #20) was called by the program (disallowed syscall) |