Question

Three C Code Questions:

5. Write a C program that declares an array of 10 strings, each of max length 50 characters, and then reads an entire line of text from the keyboard into each string.

6. Write C code that finds the longest name in this array of strings that you read in Q5. Hint: find the position of the longest string, not the string itself.

7. Write a C program that creates a 4 x 6 two dimensional array of integers. Your program should then prompt the user to enter 24 values to fill the array. Once this is done, you should then calculate the sum and maximum value of each row of the array separately. Your program should use nested loops to do this, and display the output in the following form:

Row 1: Sum of numbers is 31, maximum value 11

Row 2: Sum of numbers is 13, maximum value 5

Row 3: Sum of numbers is 105, maximum value 52

Answer 1

#include <stdio.h>

int main(){
    char arr[10][50];
    int i;

    for(i = 0;i<10;i++){
        scanf(" %[^\t\n]s",&arr[i]);
    }

    return 0;
}

=====================================

#include <stdio.h>
#include <string.h>

int main(){
    char arr[10][50];
    int i, max = 0;

    for(i = 0;i<10;i++){
        scanf(" %[^\t\n]s",&arr[i]);
    }

    for(i = 1;i<10;i++){
        if(strlen(arr[max]) < strlen(arr[i])){
            max = i;
        }
    }

    printf("Longest string index : %d\n",max);

    return 0;
}

=====================================

#include <stdio.h>

int main(){
    int arr[4][6];
    int i,j,max,sum;
    
    printf("Enter 24 values:\n");
    for(i = 0;i<4;i++){
        for(j = 0;j<6;j++){
            scanf("%d",&arr[i][j]);
        }
    }
    
    
    for(i = 0;i<4;i++){
        sum = 0;
        max = arr[i][0];
        for(j = 0;j<6;j++){
            if(max < arr[i][j]){
                max = arr[i][j];
            }
            sum = sum + 1;
        }
        printf("Row %d: Sum of numbers is %d, maximum value %d\n",i+1,sum,max);
    }
    
    return 0;
}