View Compilation Error

0_0_4677117_11610.c:3:21: algorithm: No such file or directory
0_0_4677117_11610.c:6: error: syntax error before "namespace"
0_0_4677117_11610.c:12: error: syntax error before '<' token
0_0_4677117_11610.c:16: error: `e' undeclared here (not in a function)
0_0_4677117_11610.c:17: error: syntax error before "while"
0_0_4677117_11610.c: In function `main':
0_0_4677117_11610.c:76: error: invalid operands to binary -
0_0_4677117_11610.c:77: error: invalid operands to binary -