88分求助!1个TLE!

Yue_Hao @ 2024-08-17 12:26:51

#include <bits/stdc++.h>
using namespace std;
bool pd(long long n){
    for(long long i = 3; i <= ceil(sqrt(n)); i += 2) if(n % i == 0) return false;
    return true;
}
bool reint(long long n){
    long long nn = n;
    string s = "", c;
    while(nn != 0){
        c = (nn % 10 + '0');
        s.insert(0, c);
        nn /= 10;
    }
    string s1 = s;
    reverse(s1.begin(), s1.end());
    if(s1 == s){
        if( pd(n) ) return true;
        else return false;
    }else return false;
}
int main(){
    long long a, b;
    scanf("%lld %lld", &a, &b);
    if(a % 2 == 0) a += 1;
    for(long long i = a; i <= b; i += 2) if( reint(i) ) printf("%lld\n", i);
    return 0;
}

by Yue_Hao @ 2024-08-17 13:15:44

@simple_child ,并不知道诶,我连C语言我只知道名字,并不知道风格

by Yue_Hao @ 2024-08-17 13:17:36

@simple_child ,用了,虽说没什么用,起码内存优化了一下( ( (

by simple_child @ 2024-08-17 13:19:37

@Yue_Hao 啊这……，

scanf和printf是C语言风格，cin和cout是C++风格```
（别问我为啥这么发，因为它不给发那四个单词（（

by simple_child @ 2024-08-17 13:20:29

@Yue_Hao 哪个是优化时间的……

by Yue_Hao @ 2024-08-17 13:26:10

@simple_child ,emm,printf和scanf吗?

by simple_child @ 2024-08-17 13:27:31

@Yue_Hao 要用C++风格那句才有效哦

by Yue_Hao @ 2024-08-17 13:29:07

@simple_child ,哦,知道了,感谢大佬

by Yue_Hao @ 2024-08-17 13:31:16

@simple_child ,

#include <bits/stdc++.h>
using namespace std;
int main(){
  //所有scanf和printf都改成了cin和cout了
  return 0;
}

by Yue_Hao @ 2024-08-17 13:32:09

@simple_child ,喜提一个TLE

by Yue_Hao @ 2024-08-17 13:32:43

C语言风格全都换成了C++风格了还是TLE