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  1. #include <iostream>
  2.  
  3. int main(void)
  4. {
  5.   auto pow_int = [] (int x, int y) {
  6.     int i, mult = 1;
  7.     for (i=0; i<y; i++)
  8.       mult *= x;
  9.     return mult;
  10.   };
  11.  
  12.   auto get_sum = [] (int min, int max, bool is_even)
  13.   {
  14.     int i, sum = 0;
  15.     for (i=min; i<max+1; i++)
  16.       sum += (i%2==0 && is_even || i%2==1 && !is_even) ? i : 0;
  17.     return sum;
  18.   };
  19.  
  20.   /* 1 */
  21.   std::cout << "1) " <<  get_sum(1, 10, true) << std::endl;
  22.  
  23.   /* 2 */
  24.   int even_sum = get_sum(1, 100, false), odd_sum = get_sum(1, 100, true);
  25.   std::cout << "2) Odd: " << even_sum <<
  26.                ", Even: " << odd_sum <<
  27.                ", All: " << even_sum + odd_sum << std::endl;
  28.   /* 3 */
  29.   std::cout << "3) y = 5x + 8;" <<std::endl;
  30.   for (int i=0; i<=10; i++)
  31.     std::cout << "y=" << 5*i+8 << "[x=" << i << "]" << std::endl;
  32.  
  33.   /* 4 */
  34.   int pow_sum = 0;
  35.   for (int j=10; j<=90; j+=20)
  36.     pow_sum += pow_int(j, 3);
  37.   std::cout << "4) " << pow_sum << std::endl;
  38. }
  39.  
Success #stdin #stdout 0s 3296KB
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stdout
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1) 30
2) Odd: 2500, Even: 2550, All: 5050
3) y = 5x + 8;
y=8[x=0]
y=13[x=1]
y=18[x=2]
y=23[x=3]
y=28[x=4]
y=33[x=5]
y=38[x=6]
y=43[x=7]
y=48[x=8]
y=53[x=9]
y=58[x=10]
4) 1225000
https://ideone.com/02Tgb4
language:
C++14 (gcc 8.3)
created:
11 years ago
visibility:
public

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