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  1. #include <stdio.h>
  2.  
  3. int main() 
  4. {
  5. 	float num1,num2,Ans;
  6. 	int key;
  7. 	printf("Input Number1:");
  8. 	scanf("\n%f",&num1);
  9. 	printf("Input Number2:");
  10. 	scanf("\n%f",&num2);
  11. 	printf("Input key for opration");
  12. 	printf("\n 1=+,2=-3=/,4=*");
  13. 	scanf("\n%d",&key);
  14. 	if(key==1)
  15. 	{
  16. 		Ans=num1+num2;
  17. 	}
  18. 	else if(key==2)
  19. 	{
  20. 		Ans=num1-num2;
  21. 	}
  22. 	else if(key==3)
  23. 	{
  24. 		Ans=num1/num2;
  25. 	}
  26. 	else if(key==4)
  27. 	{
  28. 		Ans=num1*num2;
  29. 	}
  30. 	else
  31. 	{
  32. 		printf("ERROR");
  33. 	}
  34. 	printf("\nAns is %f",Ans);
  35. 	return 0;
  36. }
  37.  
Success #stdin #stdout 0s 5628KB
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1
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stdout
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Input Number1:Input Number2:Input key for opration
 1=+,2=-3=/,4=*
Ans is -3.000000
https://ideone.com/Oq1Yrn
language:
C (gcc 8.3)
created:
2 years ago
visibility:
public

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