View Compilation Error

0_0_1326096_5941.c:2:14: set: No such file or directory
0_0_1326096_5941.c:3: error: syntax error before "namespace"
0_0_1326096_5941.c: In function `main':
0_0_1326096_5941.c:6: error: `set' undeclared (first use in this function)
0_0_1326096_5941.c:6: error: (Each undeclared identifier is reported only once
0_0_1326096_5941.c:6: error: for each function it appears in.)
0_0_1326096_5941.c:6: error: syntax error before "int"
0_0_1326096_5941.c:7: error: syntax error before "int"
0_0_1326096_5941.c:12: error: `a' undeclared (first use in this function)
0_0_1326096_5941.c:18: error: `it' undeclared (first use in this function)