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DS_LAB- Exam NOTES

 EXP 1: C program to traverse an array #include < stdio.h > int main () {     int arr [ 5 ] = { 10 , 20 , 30 , 40 , 50 };  // Declare and initialize an array     int i ;     printf (" The elements of the array are: \n ");     for ( i = 0 ; i < 5 ; i ++ ) {         printf (" Element at index %d : %d \n ", i , arr [ i ]);     }     return 0 ; } Exp: 2 C program to insert an element into an array #include < stdio.h > int main () {     int arr [ 100 ], n , i , pos , value ;     // Get number of elements     printf (" Enter number of elements in array: ");     scanf (" %d ", & n );     // Get elements from user     printf (" Enter %d elements: \n ", n );     for ( i = 0 ; i < n ; i ++ ) {         scanf (" %d ", & arr [ i ]);     }     //...
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WEB TECH lab

  < html > < head >     < title >Number in word</ title >     < script >         function convert () {             var num = document . forms [" frm1 "]. num . value ;             document . forms [" frm1 "]. words . value = "";             if ( isNaN ( num )) {                 alert (" Please enter a number ");             } else if ( num < 0 || num > 999 ) {                 alert (" Please enter a number between 0 and 999 ");             } else {                 var len = num .length;                 var words = "";                 for ( v...
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C-Programming of Class 12

1. Write a program to input any three numbers and find out which one is the largest number using user defined function.       #include<stdio.h> int larg_num(int num1, int num2, int num3){     if(num1 >= num2 && num1 >= num3){         return num1;     }else if(num2 >=num1 && num2>=num3){         return num2;     }     else{         return num3;     } } int main(){ int num1, num2, num3; scanf("%d%d%d", &num1,&num2,&num3); int largest = larg_num(num1,num2,num3); printf("the largest number is %d",largest);     return 0; } 2. Write a program to display the day using the switch statement depending upon the number entered. i.e. input 1 for Sunday, 7 for Saturday using user defined  function. #include <stdio.h> char *days(int num) {     switch (num)     {     case 1:   ...
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C-Program of Class 11

 1. Define string. Explain any four-string handling function used in C. A String in C programming is a sequence of characters terminated with a null character ‘\0’. The C String is stored as an array of characters. #include <stdio.h> #include <string.h> int main() {     char str1[20] = "Hello";     char str2[20] = "World";     char str3[20];     strcpy(str3, str1);     printf("Copied string: %s\n", str3);     strcat(str2, str1);     printf("Concatenates string: %s\n", str1);     printf("Length of str1: %lu\n", strlen(str1));     if (strcmp(str1, str2) == 0)         printf("str1 and str2 are equal\n");     else if (strcmp(str1, str2) < 0)         printf("str1 is less than str2\n");     else         printf("str1 is greater than str2\n");     return 0; } strcat(): Concatenates (joins) two stri...
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