#include <stdio.h> int main (){ int index; int mark1; int mark2; printf("Enter index number :"); scanf("%d",&index); printf("Enter mark1 :"); scanf("%d",&mark1); printf("Enter mark2 :"); scanf("%d",&mark2); int avg = (mark1+mark2)/2; printf("Average of marks :%d\n",avg); if(avg>=35){ printf("Grade = c"); }else{ printf("fail"); } return 0; }