Bộ câu hỏi trắc nghiệm về lập trình có giải P6

#include <stdio.h>void main(){int i;for (i=2; ; i++) printf(“%3d”,i);};

#include <stdio.h>void main(){int sum;sum= 453+343printf(“\Ket qua la: “ sum) ;} ;

#include <stdio.h>void main(){int i,j;for (i=1; i<4; i++) j=i; printf(“%3d”,j);};

#include <stdio.h>void main(){int a=40, b=4;while(a!=b)if (a>b) a=a-b; else b=b-a; printf(“%d”,a);};

#include <stdio.h>void hoanvi(int *px, int *py){int z ; z=*px;*px=*py ;*py=z ;} ;void main(){int a=15, b=21 ; hoanvi(a,b) ; printf (“%d %d”,a,b);};

#include <stdio.h>void hoanvi(int px, int py){int pz;pz=px; px=py; py=pz;};void main(){int a=15, b=21; hoanvi(a,b);printf(“%d %d”,a,b);};

#include <stdio.h >void main(){char *s;s=”chao cac ban”; strcpy(&s[5],&s[9]); printf(“%s”,s);};

#include <stdio.h>void main(){int a=100, b=6; double f;f=(double)a/(double)b; printf(“%2.2f”,f);};