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IDProblemSubmitterResultTimeMemoryLanguageFile sizeSubmit timeJudge time
#731659#9543. Good Partitionsforget-star#WA 3ms4684kbC++141.1kb2024-11-10 10:18:582024-11-10 10:19:01

Judging History

你现在查看的是最新测评结果

  • [2024-11-10 10:19:01]
  • 评测
  • 测评结果:WA
  • 用时:3ms
  • 内存:4684kb
  • [2024-11-10 10:18:58]
  • 提交

answer

#include<iostream>
#include<algorithm>
#include<cstdio>
#include<cstring>
#include<vector>
#include<queue>
#include<set>
#include<map>
using namespace std;
const int N=2e5+10;
int gcd(int x,int y){return y==0?x:gcd(y,x%y);}
int n,q,a[N],tr[N<<2],cnt[N];
void build(int k,int l,int r)
{
	if(l==r)
	{
		if(l<n&&a[l]>a[l+1]) tr[k]=l;
		else tr[k]=0;
		return;
	}
	int mid=(l+r)>>1;
	build(k<<1,l,mid);
	build(k<<1|1,mid+1,r);
	tr[k]=gcd(tr[k<<1],tr[k<<1|1]);
	return;
}
void modify(int k,int l,int r,int x,int v)
{
	if(l==r)
	{
		tr[k]=v;
		return;
	}
	int mid=(l+r)>>1;
	if(x<=mid) modify(k<<1,l,mid,x,v);
	else modify(k<<1|1,mid+1,r,x,v);
	tr[k]=gcd(tr[k<<1],tr[k<<1|1]);
	return;
}
int main()
{
	for(int i=1;i<=200000;i++)
		for(int j=i;j<=200000;j+=i) cnt[j]++;
	int T;scanf("%d",&T);
	while(T--)
	{
		scanf("%d%d",&n,&q);
		for(int i=1;i<=n;i++) scanf("%d",&a[i]);
		build(1,1,n);
		printf("%d\n",cnt[tr[1]]);
		while(q--)
		{
			int x,y;scanf("%d%d",&x,&y);a[x]=y;
			if(x>1) modify(1,1,n,x-1,(a[x-1]>a[x])?x-1:0);
			if(x<n) modify(1,1,n,x,(a[x]>a[x+1])?x:0);
			printf("%d\n",cnt[tr[1]]);
		}
	}
	return 0;
}

Details

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Test #1:

score: 100
Accepted
time: 2ms
memory: 4684kb

input:

1
5 2
4 3 2 6 1
2 5
3 5

output:

1
2
3

result:

ok 3 lines

Test #2:

score: -100
Wrong Answer
time: 3ms
memory: 4680kb

input:

1
1 1
2000000000
1 1999999999

output:

0
0

result:

wrong answer 1st lines differ - expected: '1', found: '0'