CSC215 Homework Homework 03 Due date: Oct 07, 2016

Question 1 what is the output of the following code fragments: int n =5, i; if (n > 0) for (i = 0; i < n; i++) if (i % 7 > 0) { printf("..."); return i; } else printf("error, n is negative\n"); int c, i, j; char s[8] = "STRESSED"; for (i = 0, j = 7; i < j; i++, j--) { c = s[i]; s[i] = s[j]; s[j] = c; } printf("%s\n", s); int a = 10; do { if( a == 15) { a = a + 1; Continue; } printf("value of a: %d\n", a); a++; } while( a < 20 ); int x = 5, y = -3; if (x = y) printf("%d\t%d\n", x, y); else if (x > y) printf("%d > %d\n", x, y); else printf("%d < %d\n", x, y);

Question 2 complete the following program: #include <stdio.h> int main(){ char ch = getchar(); if (....................................) /* test if ch is a capital letter */ printf("%c is a capital letter\n", ch); else if (....................................) /* test if ch is a small letter */ printf("%c is a small letter\n", ch); else if (....................................) /* test if ch is a digit */ printf("%c is a digit\n", ch); else if (....................................) /* test if ch is an arithmetic operator */ printf("%c is an arithmetic operator\n", ch); else printf("Unrecognized character"); return 0; }

Question 3 find the number of iterations of each loop below: int a = 10; do { if( a == 15) a = a + 1; printf("value of a: %d\n", a++); } while( a < 20 ); int i; for(i=900;-5 ;i/=3){ printf("%d ",i); if(i<=34) break; } int i,j,k; for(i=0,k=0;i<=5,k<=3;i++,k+=2){ printf("%d ",i+k); } int n = 100; While (--n) printf("%d\n", n*2); unsigned char c; for(c=255; c; c>>=1){ printf("%d ",c); } unsigned char c; for(c=128; c; c>>=1){ printf("%d ",c); } unsigned char c; for(c=1; c; c<<=1){ printf("%d ",c); }