View Compilation Error

0_0_16794225_7540.cpp:1:5: error: stray '#' in program
 nick#include <stdio.h>
     ^
0_0_16794225_7540.cpp:1:1: error: 'nick' does not name a type
 nick#include <stdio.h>
 ^
0_0_16794225_7540.cpp: In function 'int main(int, char**)':
0_0_16794225_7540.cpp:14:21: error: 'scanf' was not declared in this scope
   scanf("%d%d",&M,&N);
                     ^
0_0_16794225_7540.cpp:42:20: error: 'printf' was not declared in this scope
   printf("%.3f\n",s);
                    ^