题解 | #截取字符串#

strncpy
#include <stdio.h>
#include <string.h>

int main(){
char str[100];
    int k;
while(scanf("%s",str)!=EOF){
scanf("%d",&k);
    char output[100]={'\0'};
    strncpy(output,str,k);
    printf("%s\n",output);
}
    
    
return 0;
}