View Compilation Error

0_0_31873083_14179.cpp: In function 'int main()':
0_0_31873083_14179.cpp:13:18: error: expected ')' before ';' token
         while(i=m;i<=n;i++)
                  ^
0_0_31873083_14179.cpp:13:27: error: expected ';' before ')' token
         while(i=m;i<=n;i++)
                           ^