View Compilation Error

0_0_11889023_30265.c:2:20: algorithm: No such file or directory
0_0_11889023_30265.c:3: error: syntax error before "namespace"
0_0_11889023_30265.c: In function `main':
0_0_11889023_30265.c:23: error: syntax error before '/' token
0_0_11889023_30265.c:31: error: syntax error before '/' token