/** * 100 - The 3n + 1 problem */ #include #include using namespace std; int main(){ int i, j, auxI, auxJ, max, cycle; while(cin >> i >> j){ auxI = i; auxJ = j; if(i > j) swap(i, j); max = -1; while(i <= j){ cycle = 1; long long int n = i; while(n != 1){ if(n % 2 == 1) n = 3 * n + 1; else n /= 2; cycle++; } if(cycle > max) max = cycle; i++; } printf("%d %d %d\n", auxI, auxJ, max); } return 0; } /** Sample Input 1 10 100 200 201 210 900 1000 */