View Compilation Error

0_0_16677718_15755.cpp: In function 'int main()':
0_0_16677718_15755.cpp:54:7: error: redeclaration of 'int c'
   int c=0,d=0;
       ^
0_0_16677718_15755.cpp:46:7: note: 'int c' previously declared here
   int c=0;
       ^