提交记录 #334

编译情况：编译错误

code.c: In function ‘main’:
code.c:10:5: warning: implicit declaration of function ‘fgets’ [-Wimplicit-function-declaration]
   10 |     fgets(p, 200, stdin);
      |     ^~~~~
code.c:10:19: error: ‘stdin’ undeclared (first use in this function)
   10 |     fgets(p, 200, stdin);
      |                   ^~~~~
code.c:5:1: note: ‘stdin’ is defined in header ‘<stdio.h>’; did you forget to ‘#include <stdio.h>’?
    4 | #include <ctype.h>
  +++ |+#include <stdio.h>
    5 | int main(){
code.c:10:19: note: each undeclared identifier is reported only once for each function it appears in
   10 |     fgets(p, 200, stdin);
      |                   ^~~~~
code.c:23:17: warning: implicit declaration of function ‘putchar’ [-Wimplicit-function-declaration]
   23 |                 putchar(*(excg+q));
      |                 ^~~~~~~
code.c:32:5: warning: implicit declaration of function ‘printf’ [-Wimplicit-function-declaration]
   32 |     printf("\n");
      |     ^~~~~~
code.c:32:5: warning: incompatible implicit declaration of built-in function ‘printf’
code.c:32:5: note: include ‘<stdio.h>’ or provide a declaration of ‘printf’

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

52【字符】字符替换*——用指针更方便

#include <stdlib.h>  
#include <string.h>  
#include <ctype.h>
int main(){
    char *p = malloc(sizeof(char) * 200 );
    char *index = malloc(sizeof(char) * 20 );
    char *excg = malloc(sizeof(char) * 20 );
    int i, j=0;
    fgets(p, 200, stdin);
    fgets(index, 20, stdin);
    while(1==1){
        if(*(index+j)=='\n'){
            *(index+j)='\0';
            break;
        }
        j++;
    }
    fgets(excg, 20, stdin);
    for(i=0; *(p+i)!='\n';){
        if( (p+i)==strstr(p, index)){
            for(int q=0; *(excg+q)!='\n'; q++){
                putchar(*(excg+q));
            }
            i=i+strlen(index);
        }
        else{
            putchar(*(p+i));
            i++;
        }
    }    
    printf("\n");
    return 0;
}