Programming Problem Solving: uva 100 - The 3n + 1 - with C++ / cpp

Programming Problem Solving: uva 100 - The 3n + 1 - with C++ / cpp
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#include <iostream> #include <cstdio> using namespace std; int main () { int i, j; while ((cin>>i>>j)) { int i1 = i; int j1 = j; if ( i > j ) swap (i, j); int mcl= 0,cl; while ( i <= j ) { cl = 1; unsigned int n=i; while ( n != 1 ) { if ( n % 2 == 1 ) n = 3 * n + 1; else n = n/2; cl++; } if ( cl > mcl ) mcl = cl; i++; } cout<<i1<<" "<<j1<<" "<<mcl<<endl; } return 0; }