View Compilation Error

0_0_36045783_24162.cpp: In function 'void init()':
0_0_36045783_24162.cpp:15:22: error: 'scanf' was not declared in this scope
         scanf("%s", s);
                      ^
0_0_36045783_24162.cpp: In function 'void solve()':
0_0_36045783_24162.cpp:57:25: error: 'printf' was not declared in this scope
         if(i) printf(" ");
                         ^
0_0_36045783_24162.cpp:58:32: error: 'printf' was not declared in this scope
         printf("%.2lf", q[k][i]);
                                ^
0_0_36045783_24162.cpp:60:16: error: 'printf' was not declared in this scope
     printf("\n");
                ^
0_0_36045783_24162.cpp: In function 'int main()':
0_0_36045783_24162.cpp:64:25: error: 'scanf' was not declared in this scope
     while(scanf("%d", &N) != EOF)
                         ^
0_0_36045783_24162.cpp:64:30: error: 'EOF' was not declared in this scope
     while(scanf("%d", &N) != EOF)
                              ^