提交记录 #284

编译情况：编译错误

code.c:30:6: error: conflicting types for ‘isPrime’
   30 | void isPrime(int n){
      |      ^~~~~~~
code.c:8:6: note: previous declaration of ‘isPrime’ was here
    8 |  int isPrime( int );  // 若是素数函数isPrim返回1，否则返回0
      |      ^~~~~~~
code.c: In function ‘isPrime’:
code.c:31:20: warning: ‘return’ with a value, in function returning void [-Wreturn-type]
   31 |     if(n<=0)return 0;
      |                    ^
code.c:30:6: note: declared here
   30 | void isPrime(int n){
      |      ^~~~~~~
code.c:32:20: warning: ‘return’ with a value, in function returning void [-Wreturn-type]
   32 |     if(n==2)return 1;
      |                    ^
code.c:30:6: note: declared here
   30 | void isPrime(int n){
      |      ^~~~~~~
code.c:33:22: warning: ‘return’ with a value, in function returning void [-Wreturn-type]
   33 |     if(n%2==0)return 0;
      |                      ^
code.c:30:6: note: declared here
   30 | void isPrime(int n){
      |      ^~~~~~~
code.c:35:26: warning: ‘return’ with a value, in function returning void [-Wreturn-type]
   35 |         if(n%i==0)return 0;
      |                          ^
code.c:30:6: note: declared here
   30 | void isPrime(int n){
      |      ^~~~~~~
code.c:37:12: warning: ‘return’ with a value, in function returning void [-Wreturn-type]
   37 |     return 1;
      |            ^
code.c:30:6: note: declared here
   30 | void isPrime(int n){
      |      ^~~~~~~

固定测试点暂不可用

等待中

N/A

N/A

附加测试点暂不可用

不可用

N/A

42【中学】孪生素数（编子函数）

void isPrime(int n){
    if(n<=0)return 0;
    if(n==2)return 1;
    if(n%2==0)return 0;
    for (int i=3;i<=sqrt(n);i+=2){
        if(n%i==0)return 0;
    }
    return 1;
}