mirror of
https://git.sb/baoshuo/OI-codes.git
synced 2024-11-30 21:16:27 +00:00
72 lines
1.2 KiB
C++
72 lines
1.2 KiB
C++
|
#include <iostream>
|
||
|
|
||
|
using std::cin;
|
||
|
using std::cout;
|
||
|
const char endl = '\n';
|
||
|
|
||
|
const int N = 1e5 + 5;
|
||
|
|
||
|
int n, q, c1[N], c2[N], r[N], c[N];
|
||
|
|
||
|
inline int lowbit(int x) {
|
||
|
return x & -x;
|
||
|
}
|
||
|
|
||
|
void add(int *c, int x, int y) {
|
||
|
for (; x <= n; x += lowbit(x)) c[x] += y;
|
||
|
}
|
||
|
|
||
|
int sum(int *c, int x) {
|
||
|
int ans = 0;
|
||
|
for (; x; x -= lowbit(x)) ans += c[x];
|
||
|
return ans;
|
||
|
}
|
||
|
|
||
|
int main() {
|
||
|
std::ios::sync_with_stdio(false);
|
||
|
|
||
|
cin >> n >> q;
|
||
|
|
||
|
while (q--) {
|
||
|
int t;
|
||
|
|
||
|
cin >> t;
|
||
|
|
||
|
switch (t) {
|
||
|
case 1: {
|
||
|
int x, y;
|
||
|
|
||
|
cin >> x >> y;
|
||
|
|
||
|
if (!r[x]++) add(c1, x, 1);
|
||
|
if (!c[y]++) add(c2, y, 1);
|
||
|
|
||
|
break;
|
||
|
}
|
||
|
|
||
|
case 2: {
|
||
|
int x, y;
|
||
|
|
||
|
cin >> x >> y;
|
||
|
|
||
|
if (!--r[x]) add(c1, x, -1);
|
||
|
if (!--c[y]) add(c2, y, -1);
|
||
|
|
||
|
break;
|
||
|
}
|
||
|
|
||
|
case 3: {
|
||
|
int x1, y1, x2, y2;
|
||
|
|
||
|
cin >> x1 >> y1 >> x2 >> y2;
|
||
|
|
||
|
cout << ((sum(c1, x2) - sum(c1, x1 - 1) == x2 - x1 + 1) || (sum(c2, y2) - sum(c2, y1 - 1) == y2 - y1 + 1) ? "Yes" : "No") << endl;
|
||
|
|
||
|
break;
|
||
|
}
|
||
|
}
|
||
|
}
|
||
|
|
||
|
return 0;
|
||
|
}
|