C lecture 4 nested loops and jumping statements slideshare

C lecture 4 nested loops and jumping statements slideshare

• 1.
  Gagan Deep RozyComputech Services 3rd Gate, K.U., Kurukshetra-136119 M- 9416011599 Email – rozygag@yahoo.com
• 2.
  Nested Loops Loops, like if-else statements, can be nested, one within another.  The inner and outer loops need not be generated by the same type of control structure.  It is essential, however, that one loop be completely embedded within the other - there can be no overlap.  Each loop must be controlled by different index.  Moreover, nested control structure can involve both loops and if-else statement.  Thus, a loop can be nested within an if-else statement, and an if-else statement can be nested within a loop.  The nested structure may be complex as necessary, as determined by the program logic.
• 3.
  Tables of 1-10Program 1-4 #include <stdio.h> void main() { int i,j; for (i=1; i<=10; i++) for(j=1; j<=10; j++) printf(“%d ”, i*j); Prints 1 2 3 ..10 2 4 6 ..20 ………10 20 30 ……..100 #include <stdio.h> void main() { int i=1,J; while(i<=10) { for (j=1; j<=10; j++) printf(“ %dt”, i*j); i++; } } #include <stdio.h> void main() { int i=1,j=1; while(i<=10) { while(j<=10) { printf(“ %d”, i*j); j++;} i++;} } #include <stdio.h> void main() { int i,j =1; for (i=1; i<=10; i++) d0 { printf(“%dn ”, i*j); j++; } while(j<=10) ; }
• 4.
  Program 5-6 CheckPalindrome Number from 11 to 500 #include<stdio.h> void main() {int i, r, T, rn=0; for ( i = 11; i<=500; i++) { T=i; while (T!=0) { r=T%10; T=T/10 ; rn=rn*10+r; } if (rn==i) printf(“%d is Palindrome Number”, ); else printf(“%d is Non-Palindrome Number); } } Check Palindrome Number from 11 to 500 #include<stdio.h> void main() {int n=11,r, T, rn=0; while(n<=500) { T=n; while (T!=0) { r=T%10; T=T/10 ; rn=rn*10+r; } if (rn==n) printf(“%d is Palindrome Number”, ); } }
• 5.
  Jumping Statements Jumping statements are also known as Loop Control Statements.  Jumping statements are of different types  break  continue  goto  return  exit ()
• 6.
  break Statements break statement simply terminates the loop and takes control out of the loop. Here explained break statement for for Loop for(…………….) { .. . . . . . . . .. . . . . . . . if (condition) break; .. . . . . . . . .. . . . . . . . } 8. Print sum of infinite numbers. #include <stdio.h> void main () { int a, sum=0; for( ; ; ) { scanf(“%d”, &a); if (a==-999) break; sum=sum+a; } printf(“The sum is %d”, sum); }
• 7.
  break statement forwhile & do While Loop while(……..) { . . . . . . . . . . . . . . . . . . if (condition) break; . . . . . . . . . . . . . . . . . . } . . . . . . . . . . . . . . . . . . do { . . . . . . . . . . . . . . . . . . if (condition) break; . . . . . . . . . . . . . . . . . . } while (…….); . . . . . . . . . . . . . . . . . .
• 8.
  Continue Statement Continue is used for skipping a part of loop for some condition.  Continue causes the remaining code inside a loop block to be skipped and causes execution of jump to the top of loop block for(…………….) { .. . . . . . . . .. . . . . . . . if (condition) continue; .. . . . . . . . .. . . . . . . . } 12 Print 1-10 numbers except 3 and 7 #include <stdio.h> void main () { int i; for(i=1 ; 1<=10 ; i++) { if ((i==3)||(i==7)) continue; printf(“ %dt”, i); } }
• 9.
  continue statement forwhile & do-while Loops while(……..) { . . . . . . . . . . . . . . . . . . if (condition) continue; . . . . . . . . . . . . . . . . . . } . . . . . . . . . . . . . . . . . . do { . . . . . . . . . . . . . . . . . . if (condition) continue; . . . . . . . . . . . . . . . . . . } while (…….); . . . . . . . . . . . . . . . . . .
• 10.
  goto statement gotolabel1 . . . . . . . . . . . . . . . . . . . . label2: . . . . . . . . . . . . . . . . . . . . label1: . . . . . . . . . . . . . . . . . . . . goto label2  The goto statement is used to alter the normal sequence of program execution by transferring control to some other part of the program unconditionally/conditionally.  In its general form, the goto statement is written as  goto label;  where the label is an identifier that is used to label the target statement to which the control is transferred. label : statement;  Each labeled statement within the function must have a unique label, i.e., no two statement can have the same label.
• 11.
  return statement andexit()  return is an instruction of the language that returns from a function call.  exit is a system call (not a language statement) that terminates the current process.
• 12.
  Print Prime numbersin between 2-100 Prog. 16 #include <stdio.h> void main () { int i, j; for(i=2; i<100; i++) { for(j=2; j <= (i/j); j++) if(!(i%j)) break; // if factor found, not prime if(j > (i/j)) printf ("%d is primen", i); } }
• 13.
  Examples of PyramidProgram 17 #include <stdio.h> void main() { int i,j,l; printf(“Number of lines: "); scanf("%d",&l); for(i=1;i<=l;++i) { for(j=1;j<=i;++j) printf("* "); // printf(“j "); printf("n"); } } * 1 ** 12 *** 123 **** 1234 ***** 12345
• 14.
  Do Yourself Count even and digits of a number  Sum of even and odd digits of a number  Check for Armstrong Number  Fibonacci Sequence  Prime number when divide upto n/2 and sqrt of n
• 15.
  If you haveany queries you can contact me at : rozygag@yahoo.com