View Compilation Error

0_0_28636239_7439.cpp:7:29: error: redefinition of 'int cnt'
 int t[maxn][maxn],n,r,c,cnt,cnt;
                             ^
0_0_28636239_7439.cpp:7:25: note: 'int cnt' previously declared here
 int t[maxn][maxn],n,r,c,cnt,cnt;
                         ^