#include void main(){ int n=0; printf("input a string:\n"); while(getchar()!='\n') n++; printf("%d",n); } int n=0; printf("input a string:\n"); while(getchar()!='\n') n++; printf("%d",n);
void main(){ int a=0,n; printf("\n input n: "); scanf("%d",&n); do printf("%d ",a++*2); while (--n); } int a=0,n; printf("\n input n: "); scanf("%d",&n); do printf("%d ",a++*2); while (--n);