C Program to Implement Student Database using Structure

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/* Write a program for maintaining record of 'n' students using structure */

#include <stdio.h>

#include <stdlib.h>

#include <conio.h>

struct Student{

int rollno;

char name[15];

int marks;

char grade;

} ;

int main()

{

struct Student s1[10];

int i,n;

char search[15];

/* Read student information */

printf(“How many Student Records to Store:n“);

scanf(“%d”,&n);

/* Enter student details */

printf(“Enter Student Details:n“);

for(i=0;i<n;i++)

{

printf(“Rollno:”);

scanf(“%d”,&s1[i].rollno);

printf(“n“);

printf(“Name:”);

scanf(“%s”,&s1[i].name);

printf(“n“);

printf(“Marks(in %):”);

scanf(“%d”,&s1[i].marks);

printf(“n“);

printf(“Grade:”);

if(s1[i].marks <=50)

{

s1[i].grade = ‘F’;

}

else if(s1[i].marks > 50 && s1[i].marks <= 59)

{

s1[i].grade = ‘C’;

}

else if(s1[i].marks >=60 && s1[i].marks <= 75)

{

s1[i].grade = ‘B’;

}

else if(s1[i].marks > 75 && s1[i].marks <= 95)

{

s1[i].grade = ‘A’;

}

else

{

s1[i].grade = ‘S’;

}

printf(“%ct“,s1[i].grade);

printf(“n“);

}

printf(“Enter Student Name to Search:”);

scanf(“%s”,&search);

/* print the data base */

printf(” Namett Markst Gradetn“);

for(i=0;i<n;i++)

{

if(strcmp(search,s1[i].name)== 0 )

{

printf(“%stt %dt“,search,s1[i].name);

}

else if(search == “all”)

{

printf(“%stt %dt“,search,s1[i].name);

}

}

system(“PAUSE”);

return 0;

}