View Compilation Error

0_0_2877223_25057.c:3:21: algorithm: No such file or directory
0_0_2877223_25057.c:4: error: syntax error before "namespace"
0_0_2877223_25057.c:13: error: syntax error before "cmp"
0_0_2877223_25057.c: In function `cmp':
0_0_2877223_25057.c:17: error: `true' undeclared (first use in this function)
0_0_2877223_25057.c:17: error: (Each undeclared identifier is reported only once
0_0_2877223_25057.c:17: error: for each function it appears in.)
0_0_2877223_25057.c:19: error: `false' undeclared (first use in this function)
0_0_2877223_25057.c: In function `main':
0_0_2877223_25057.c:40: error: syntax error before '/' token