View Compilation Error

0_0_2926746_10226.cpp: In function `int main()':
0_0_2926746_10226.cpp:42: error: conflicting declaration 'long long int c'
0_0_2926746_10226.cpp:41: error: 'c' has a previous declaration as `int c'
0_0_2926746_10226.cpp:42: error: declaration of `long long int c'
0_0_2926746_10226.cpp:41: error: conflicts with previous declaration `int c'