View Compilation Error

0_0_36441553_20169.cpp: In function 'int main()':
0_0_36441553_20169.cpp:21:14: error: 'n' was not declared in this scope
         cin>>n>>m;
              ^
0_0_36441553_20169.cpp:21:17: error: 'm' was not declared in this scope
         cin>>n>>m;
                 ^
0_0_36441553_20169.cpp:22:13: error: 'i' was not declared in this scope
         for(i=1;i<=n;i++)
             ^
0_0_36441553_20169.cpp:24:13: error: 'i' was not declared in this scope
         for(i=1;i<=m;i++)
             ^
0_0_36441553_20169.cpp:30:13: error: 'i' was not declared in this scope
         for(i=1;i<=n;i++)
             ^