12345.txt

#include<stdio.h> int main() { int choise,x,s,y; printf("\n1.addition"); printf("\n2.subtraction"); printf("\n3.multiplication"); printf("\n4.divition"); switch(choise) { case 1:iprintf("enter the no."); scanf("%d%d"&x,&y); s=(x+y); printf("sum is%d",s); break; case 2:iprintf("enter the no."); scanf("%d%d"&x,&y); s=(x-y); printf("difference is%d",s); break; case 3:iprintf("enter the no."); scanf("%d%d"&x,&y); s=(x*y); printf("sum is%d",s); break; case 4:iprintf("enter the no."); scanf("%d%d"&x,&y); s=(x/y); printf("sum is%d",s); break; default printf("invalid character"); } return 0; }