100pts code:

void add_l(long long x){
	cnt[a[x]]++;
	if(a[x]%4==0){
		num1[a[x]/4]+=cnt[a[x]/2];
		sum+=num2[a[x]/4];
	}
	if(a[x]%2==0){
		num2[a[x]/2]+=cnt[a[x]/2*3];
	}
}
void add_r(long long x){
	cnt[a[x]]++;
	if(a[x]%2==0){
		num1[a[x]/2]+=cnt[a[x]*2];
	}
	if(a[x]%3==0){
		num2[a[x]/3]+=cnt[a[x]/3*2];
		sum+=num1[a[x]/3];
	}
}
void del_l(long long x){
	cnt[a[x]]--;
	if(a[x]%4==0){
		num1[a[x]/4]-=cnt[a[x]/2];
		sum-=num2[a[x]/4];
	}
	if(a[x]%2==0){
		num2[a[x]/2]-=cnt[a[x]/2*3];
	}
}
void del_r(long long x){
	cnt[a[x]]--;
	if(a[x]%2==0){
		num1[a[x]/2]-=cnt[a[x]*2];
	}
	if(a[x]%3==0){
		num2[a[x]/3]-=cnt[a[x]/3*2];
		sum-=num1[a[x]/3];
	}
}

0pts code:

void add_l(long long x){
	cnt[a[x]]++;
	if(!a[x]%4){
		num1[a[x]/4]+=cnt[a[x]/2];
		sum+=num2[a[x]/4];
	}
	if(!a[x]%2){
		num2[a[x]/2]+=cnt[a[x]/2*3];
	}
}
void add_r(long long x){
	cnt[a[x]]++;
	if(!a[x]%2){
		num1[a[x]/2]+=cnt[a[x]*2];
	}
	if(!a[x]%3){
		num2[a[x]/3]+=cnt[a[x]/3*2];
		sum+=num1[a[x]/3];
	}
}
void del_l(long long x){
	cnt[a[x]]--;
	if(!a[x]%4){
		num1[a[x]/4]-=cnt[a[x]/2];
		sum-=num2[a[x]/4];
	}
	if(!a[x]%2){
		num2[a[x]/2]-=cnt[a[x]/2*3];
	}
}
void del_r(long long x){
	cnt[a[x]]--;
	if(!a[x]%2){
		num1[a[x]/2]-=cnt[a[x]*2];
	}
	if(!a[x]%3){
		num2[a[x]/3]-=cnt[a[x]/3*2];
		sum-=num1[a[x]/3];
	}
}

只是把判整除从 …%…==0 —> !…%…

100pts —> 0pts

why?

本蒟蒻写了好几道莫队题都是这种**错误调不出来