#include <iostream> using namespace std; int main() { unsigned long long int sum, sum1; unsigned int a, n, k; int iter = 0; int br = 0; cin >> sum; for(int a = 1; a < sum/3; a++) { sum1 = a*(1+2*(1+2)); if(sum1 > sum) break; for(int n = 2; n < sum; n++) { sum1 = a*(1+n*(1+2)); if(sum1 > sum) break; for(int k = 2; k < sum; k++) { sum1 = a*(1+n*(1+k)); if(sum1 == sum) iter++; else if(sum1 > sum) break; } } } cout << iter; return 0; }
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 | #include <iostream> using namespace std; int main() { unsigned long long int sum, sum1; unsigned int a, n, k; int iter = 0; int br = 0; cin >> sum; for(int a = 1; a < sum/3; a++) { sum1 = a*(1+2*(1+2)); if(sum1 > sum) break; for(int n = 2; n < sum; n++) { sum1 = a*(1+n*(1+2)); if(sum1 > sum) break; for(int k = 2; k < sum; k++) { sum1 = a*(1+n*(1+k)); if(sum1 == sum) iter++; else if(sum1 > sum) break; } } } cout << iter; return 0; } |