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#include<stdio.h>

int main()
{
char firstname[25],surname[23];
char teachername[12],teachersurname[21];
char section,subject;
float grade;

// clrscr();

no display output!!!

#include<stdio.h>

main()
{
char firstname,surname;
char teachername,teachersurname;
char section,subject;
float grade;

clrscr();

#include<stdio.h>
#define s scanf
#define p printf

main()
{
char fn,sn;
char tf,sf;
char sec,sub;
float gr;

#include<stdio.h>
#define s scanf
#define p printf

main()
{
char fn[25],sn[25];
char tf[25],sf[25];
char sec[25],sub[25];
float gr;

input
.grade
.equivalent
.remarks

output
...grade
...equivalent remarks
1- 95- 91
2- 90-86