View Compilation Error

0_0_13855024_5503.c:2:1: error: expected identifier or '(' before '/' token
 //#include <algorithm>
 ^
0_0_13855024_5503.c:2:3: error: stray '#' in program
 //#include <algorithm>
   ^
0_0_13855024_5503.c:3:3: error: stray '#' in program
 //#include <iostream>
   ^
0_0_13855024_5503.c:5:25: error: expected identifier or '(' before '/' token
 //using namespace std;  //bu shi ji he
                         ^