View Compilation Error

0_0_25578210_32657.cpp: In function 'int solve()':
0_0_25578210_32657.cpp:33:5: error: expected ';' before 'for'
     for(int i = m-1;i>=0;i--)
     ^
0_0_25578210_32657.cpp:33:21: error: 'i' was not declared in this scope
     for(int i = m-1;i>=0;i--)
                     ^