View Compilation Error

0_0_25586512_32589.cpp:6:11: error: redefinition of 'int f [55][55]'
 int f[N][N];
           ^
0_0_25586512_32589.cpp:5:21: note: 'int f [55][55]' previously declared here
 int g[N][N],d[N][N],f[N][N],a[M][N][N],b[M][N][N];
                     ^