View Compilation Error

0_0_8363098_32628.c:1:20: iostream: No such file or directory
0_0_8363098_32628.c:2:19: cstdio: No such file or directory
0_0_8363098_32628.c:3: error: syntax error before "namespace"
0_0_8363098_32628.c:7: error: variable-size type declared outside of any function
0_0_8363098_32628.c:15: error: variable-size type declared outside of any function
0_0_8363098_32628.c: In function `buildtree':
0_0_8363098_32628.c:24: error: syntax error before '/' token
0_0_8363098_32628.c: In function `update':
0_0_8363098_32628.c:43: error: syntax error before '/' token
0_0_8363098_32628.c: In function `querry':
0_0_8363098_32628.c:61: error: syntax error before '/' token
0_0_8363098_32628.c: In function `main':
0_0_8363098_32628.c:81: error: `EOF' undeclared (first use in this function)
0_0_8363098_32628.c:81: error: (Each undeclared identifier is reported only once
0_0_8363098_32628.c:81: error: for each function it appears in.)