全WA???或成唯一红测试点
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全WA???或成唯一红测试点
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chengzihan620楼主2023/11/14 19:29
#include<bits/stdc++.h>
namespace myio{
	inline void read(int &x){
		int f=1;x=0;
		char c=getchar();
		while(!isdigit(c)){if(c=='-')f=-1;c=getchar();}
		while(isdigit(c)){x=(x<<3)+(x<<1)+c-'0';c=getchar();}
		x*=f;
	}
	void write(int x){
		if(x){
			if(x<0){x=-x;putchar('-');}
			putchar(x%10+'0');
			write(x/10);
		}
	}
}
using namespace std; using namespace myio;
bool is[100000001];
int prime[1000001];
int n,q,k,c;
#define rint register int
int main(){
	read(n);
	read(q);
	memset(is,true,sizeof(is));
	for(rint i=2;i<=n;i++){
		if(is[i])prime[++c]=i;
		for(rint j=1;i*prime[j]<=n&&j<=c;j++){
			is[i*prime[j]]=false;
			if(i%prime[j]==0)break;
		}
	}
	while(q--){
		read(k);
		write(prime[k]);
		putchar('\n');
	}
  	return 0;
}
2023/11/14 19:29
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