fork(6) download
copy 
  1. #include <iostream>
  2. #include <stdio.h>
  3. #include <string.h>
  4.  
  5. using namespace std;
  6.  
  7. char grade[3];
  8. char grades[] = {'A', 'B', 'C', 'D', 'F'};
  9.  
  10. float modifier = 0.3f,
  11.       result = 0.0f;
  12.  
  13. int gNum = strlen(grades),
  14.     maxValue = gNum-1;
  15.  
  16. //Function that checks if the input is a valid grade format. This isn't really required though.
  17. bool isValidGrade(char* grade){
  18.     for(int i = 0; i < gNum; i++){
  19.         if(grade[0] == grades[i] &&(grade[1] == '\0' || (grade[1] != '\0' && (grade[1] == '-' || grade[1] == '+')))){
  20.             return true;
  21.         }
  22.     }
  23.     return false;
  24. }
  25.  
  26. int main (){
  27.     cin>>grade;
  28.  
  29.     if(isValidGrade(grade)){
  30.         //null second char, F and A+ will set the modifier to 0
  31.         if(grade[0] == 'F' || (grade[0] == 'A' && grade[1] == '+') || grade[1] == '\0'){
  32.             modifier = 0.0;
  33.         }else if(grade[1] == '-'){ //Check if modifier needs to be inverted
  34.             modifier *= -1.0;
  35.         }
  36.  
  37.         //Find our grade, then use the index to get our base value and add the modifier
  38.         for(int i = 0; i < gNum; i++){
  39.             if(grades[i] == grade[0]){
  40.                 result = (float)(maxValue - i) + modifier;
  41.                 break;
  42.             }
  43.         }
  44.  
  45.         //Print the grade value
  46.         cout<<result;
  47.     }else{    
  48.         //Print error message.
  49.         cout<<"\""<<grade<<"\" is not a valid grade.";
  50.     }
  51.     return 0;
  52. }
Success #stdin #stdout 0s 2900KB
comments (?)
stdin
copy 
B+
stdout
copy 
3.3
https://ideone.com/ax6mhj
language:
C++ (gcc 8.3)
created:
11 years ago
visibility:
secret

Share or Embed source code

Discover > Sphere Engine API

The brand new service which powers Ideone!

Discover > IDE Widget

Widget for compiling and running the source code in a web browser!