View Compilation Error

0_0_21636641_5646.cpp: In function 'int main()':
0_0_21636641_5646.cpp:17:18: error: 'i' was not declared in this scope
              for(i=0;i<n;i++)
                  ^
0_0_21636641_5646.cpp:23:18: error: 'i' was not declared in this scope
              for(i=0,win=0;i<n;i++)
                  ^