Question

Ceate a two dimensional array of int type to hold scores (on a scale of 0 to 100) for 10 students (row) for 3 courses (columns) and initialize the array with your preferred data. All the students get 10 bonus points for course #2 (index 1) . Use for a loop to add the bonus points.

c programming language

Answer 1

Source code of the program and its working are given below.Comments are also given along with the code for better understanding.Screen shot of the code and output are also attached.If find any difficulty, feel free to ask in comment section. Please do upvote the answer.Thank you.

Working of the code

• Program declare a 2D array of size 10 x 3
• Using nestead for loop,elements of the array are entered
• Outer for loop iterate through number of students
• Inner for loop iterate through number of courses
• Each score of students are read using scanf() function
• Bonus points 10 is added to second course score(at index 1) of each student
• Check whether adding bonus points exceeds score 100 or not
• if yes set score to 100
• Using nestead for loop,scores of students after adding bonus points are printed

Source code

#include<stdio.h>
int main()
{
   //creating a two dimensional array of size 10 X 3
   int scores[10][3],i,j;
   //Entering 10 student's marks
   for(i=0;i<10;i++)
   {
       printf("Enter the scores of student %d ",i+1);
       //for each student,marks of three courses added
       for(j=0;j<3;j++)
           //reading scores
           scanf("%d",&scores[i][j]);
   }
   //10 point bonus is added to course 2 for all students
   printf("\nAdding 10 bonus to course 2........");
   //accessing each student
   for(i=0;i<10;i++)
   {
       //adding 10 points to second course(ie index 1)
       scores[i][1]=scores[i][1]+10;
       //checking if score exceeds 100 if yes set score to 100
       if(scores[i][1]>100)
           scores[i][1]=100;
   }
   printf("\nScores of the students after adding bonus...");
   //printing scores of each student after adding bonus point
   for(i=0;i<10;i++)
   {
       printf("\n\nScores of student %d",i+1);
       for(j=0;j<3;j++)
           printf("\nCourse %d score = %d",j+1,scores[i][j]);
   }
          
}

Screen shot of the code

Screen shot of the output