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  1. #include <iostream>
  2. using namespace std;
  3.  
  4. int incr(int x){
  5. 	return (x+1);
  6. }
  7.  
  8. int add(int x, int y){
  9. 	for (int i=0;i<x;i++)
  10. 		y = incr(y);
  11. 	return y;
  12. }
  13.  
  14. int decr(int x){
  15.     int y = 0;
  16.     int z = 0;
  17.     for (int i=0;i<x;i++){
  18.         y = z;
  19.         z = incr(z);
  20.     }
  21.     return y;
  22. }
  23.  
  24. int sub(int x, int y){
  25.     for (int i=0;i<y;i++)
  26.     	x = decr(x);
  27.     return x;
  28. }
  29.  
  30. bool isZero(int x) {
  31.     bool y = true;
  32.     for (int i=0;i<x;i++)
  33.     	y = false;
  34.     return y;
  35. }
  36.  
  37. bool lte(int x, int y){
  38.     int z = sub(x, y);
  39.     z = isZero(z);
  40.     return z;
  41. }
  42.  
  43. bool gt(int x, int y){
  44.     int z = lte(x, y);
  45.     z = isZero(z);
  46.     return z;
  47. }
  48.  
  49. int div_ceil(int x,int y){
  50.     int r = 0;
  51.     int t = x;
  52.     for (int i=0;i<x;i++){
  53.         int z = 0;
  54.         int l = gt(t,z);
  55.         r = add(r,l);
  56.         t = sub(t,y);
  57.     }
  58.     return r;
  59. }
  60.  
  61. int div_floor(int x,int y){ 
  62.     int r = 0;
  63.     int t = 0;
  64.     for (int i=0;i<x;i++){
  65.         t = add(t,y);
  66.         int l = lte(t,x);
  67.         r = add(r,l);
  68.     }
  69.     return r;
  70. }
  71.  
  72. int main(){
  73. 	cout << "Checking div_ceil(x,y)" << endl;
  74. 	cout << div_ceil(0,5) << endl;
  75. 	cout << div_ceil(5,7) << endl;
  76. 	cout << div_ceil(10,10) << endl;
  77. 	cout << div_ceil(10,2) << endl;
  78. 	cout << div_ceil(10,3) << endl;
  79.  
  80. 	cout << "Checking div_floor(x,y)" << endl;
  81. 	cout << div_floor(0,5) << endl;
  82. 	cout << div_floor(5,7) << endl;
  83. 	cout << div_floor(10,10) << endl;
  84. 	cout << div_floor(10,2) << endl;
  85. 	cout << div_floor(10,3) << endl;
  86.  
  87. 	return 0;
  88. }
Success #stdin #stdout 0s 3468KB
comments (?)
stdin
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Standard input is empty
stdout
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Checking div_ceil(x,y)
0
1
1
5
4
Checking div_floor(x,y)
0
0
1
5
3
https://ideone.com/7zSilY
language:
C++14 (gcc 8.3)
created:
9 years ago
visibility:
public

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