20 errors of hello world

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14 Bug in printf(“hello world\n”);
hello.c:6:9: error: expected ‘;’ before ‘return’
         <font face="Liberation Serif, serif"><font size="3" style="font-size: 12pt"><span style="font-style: normal"><span style="font-weight: normal">return 0;</span></span></font></font>
         <font face="Liberation Serif, serif"><font size="3" style="font-size: 12pt"><span style="font-style: normal"><span style="font-weight: normal">^~~~~~</span></span></font></font>
missing (“hello world\n”);
15 Bug in #include&lt;stdio.h&gt;
hello.c:6:9: error: expected ‘;’ before ‘return’
         <font face="Liberation Serif, serif"><font size="3" style="font-size: 12pt"><span style="font-style: normal"><span style="font-weight: normal">return 0;</span></span></font></font>
         <font face="Liberation Serif, serif"><font size="3" style="font-size: 12pt"><span style="font-style: normal"><span style="font-weight: normal">^~~~~~</span></span></font></font>
missing &lt;s
16 Bug in #include&lt;stdio.h&gt;
hello.c:1:6: error: expected ‘=’, ‘,’, ‘;’, ‘asm’ or ‘__attribute__’ before ‘&lt;’ token
 <font face="Liberation Serif, serif"><font size="3" style="font-size: 12pt"><span style="font-style: normal"><span style="font-weight: normal">clude&lt;stdio.h&gt;</span></span></font></font>
      <font face="Liberation Serif, serif"><font size="3" style="font-size: 12pt"><span style="font-style: normal"><span style="font-weight: normal">^</span></span></font></font>
missing #in