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C Program to grade calculation system

Get a mark of a student and find its grade. (Note: 96 to 100 - O Grade  91 to 95 - A Grade 81 to 90-B Grade 71 to 80 - C Grade 61 to 70 - D Grade 50 to 60 - E Grade Below 50 - F Grade)

Sample Input 1:

75

Sample Output 2:

C

Flow Chart Design

C Program to grade calculation system Flow Chart

Try your Solution

Strongly recommended to Solve it on your own, Don't directly go to the solution given below.

#include<stdio.h> int main() { //write your code here }

Program or Solution

				
			
					
#include<stdio.h>
int main()
{
	int mark;
	printf("Enter a number:");
	scanf("%d",&mark);
	if(mark>95&&mark<=100)
	{
		printf("O Grade");
	}
	else if(mark>90&&mark<=95)
	{
		printf("A grade");
	}
	else if(mark>80&&mark<91)
	{
		printf("B Grade");
	}
	else if(mark>70&&mark<81)
	{
		printf("C Grade");
	}
	else if(mark>60&&mark<71)
	{
		printf("D Grade");
	}
	else if(mark>49&&mark<61)
	{
		printf("E Grade");
	}
	else if(mark>=0&&mark<50)
	{
		printf("F Grade");
	}
	else
	{
		printf("Invalid Mark");
	}
	return 0;
}

Program Explanation

chained conditional check is used here to check the mark range. any one of the grade will be displayed.

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