#include<bits/stdc++.h>
#define x first
#define y second
using namespace std;
typedef unsigned long long ll;
typedef pair<int,int> pii;
typedef pair<ll, ll> pll;
const int MAX=(1<<20)+5;
const ll INFLL=0x3f3f3f3f3f3f3f;
bool dist[2][MAX];
int seg[2][MAX],cum[2][MAX],n,q;
int mp[MAX];
ll ans;
void update(int t1,int t2,int val){
//printf("%d %d %d\n",t1,t2,val);
if(t2<=0||t2>=(1<<n)) return;
int v=t2&(-t2);
if(val){if(seg[t1][t2]++==0) cum[t1][v]++, ans+=(ll)((1<<(n-mp[v]-1))-cum[!t1][v]);}
else{if(--seg[t1][t2]==0) cum[t1][v]--, ans-=(ll)((1<<(n-mp[v]-1))-cum[!t1][v]);}
update(t1,(t2^v)|(v<<1),val);
}
int main(){
scanf("%d%d",&n,&q);
for(int i=0;i<n;i++) mp[1<<i]=i;
for(int i=0;i<q;i++){
int t1,t2;
scanf("%d%d",&t1,&t2);
dist[t1][t2]=!dist[t1][t2],dist[t1][t2-1]=!dist[t1][t2-1];
update(t1,t2,dist[t1][t2]); update(t1,t2-1,dist[t1][t2-1]);
printf("%lld\n",ans*4ll+1ll);
}
}
Compilation message
collecting.cpp: In function 'int main()':
collecting.cpp:23:10: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
scanf("%d%d",&n,&q);
~~~~~^~~~~~~~~~~~~~
collecting.cpp:27:14: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
scanf("%d%d",&t1,&t2);
~~~~~^~~~~~~~~~~~~~~~
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
2 ms |
376 KB |
Output is correct |
2 |
Correct |
2 ms |
388 KB |
Output is correct |
3 |
Correct |
2 ms |
564 KB |
Output is correct |
4 |
Correct |
2 ms |
604 KB |
Output is correct |
5 |
Correct |
2 ms |
604 KB |
Output is correct |
6 |
Correct |
2 ms |
604 KB |
Output is correct |
7 |
Correct |
3 ms |
608 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
3 ms |
624 KB |
Output is correct |
2 |
Correct |
3 ms |
652 KB |
Output is correct |
3 |
Correct |
3 ms |
664 KB |
Output is correct |
4 |
Correct |
4 ms |
692 KB |
Output is correct |
5 |
Correct |
3 ms |
724 KB |
Output is correct |
6 |
Correct |
3 ms |
732 KB |
Output is correct |
7 |
Correct |
4 ms |
764 KB |
Output is correct |
8 |
Correct |
3 ms |
788 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
1632 ms |
55580 KB |
Output is correct |
2 |
Correct |
1631 ms |
72984 KB |
Output is correct |
3 |
Correct |
1370 ms |
82584 KB |
Output is correct |
4 |
Correct |
1611 ms |
106648 KB |
Output is correct |
5 |
Correct |
1570 ms |
122548 KB |
Output is correct |
6 |
Correct |
1580 ms |
138140 KB |
Output is correct |
7 |
Correct |
1580 ms |
155456 KB |
Output is correct |
8 |
Correct |
1643 ms |
171496 KB |
Output is correct |
9 |
Correct |
1354 ms |
178044 KB |
Output is correct |
10 |
Correct |
1458 ms |
194988 KB |
Output is correct |
11 |
Correct |
1517 ms |
215312 KB |
Output is correct |
12 |
Correct |
1564 ms |
230328 KB |
Output is correct |
13 |
Correct |
1370 ms |
239848 KB |
Output is correct |