/in/foo.cc: In function 'int main()':
/in/foo.cc:9:13: warning: 'curr' may be used uninitialized in this function [-Wmaybe-uninitialized]
     cout << result << endl;
             ^~~~~~
/in/foo.cc: In function 'int countWays(int)':
/in/foo.cc:19:31: warning: 'curr' may be used uninitialized in this function [-Wmaybe-uninitialized]
     int prev1 = 1, prev2 = 1, curr;
                               ^~~~