View Compilation Error

0_0_36083766_17898.cpp: In function 'int main()':
0_0_36083766_17898.cpp:59:15: error: 'scanf' was not declared in this scope
  scanf("%d",&m);
               ^
0_0_36083766_17898.cpp:64:25: error: 'memset' was not declared in this scope
   memset(f,inf,sizeof(f));
                         ^
0_0_36083766_17898.cpp:76:17: error: 'struct node' has no member named 'ac'
    f[i][i]=a[i].ac+a[i-1].bc+a[i+1].bc;
                 ^
0_0_36083766_17898.cpp:76:27: error: 'struct node' has no member named 'bc'
    f[i][i]=a[i].ac+a[i-1].bc+a[i+1].bc;
                           ^
0_0_36083766_17898.cpp:76:37: error: 'struct node' has no member named 'bc'
    f[i][i]=a[i].ac+a[i-1].bc+a[i+1].bc;
                                     ^
0_0_36083766_17898.cpp:86:73: error: 'min' was not declared in this scope
      f[i][j]=min(f[i][j],f[i][k-1]+f[k+1][j]+a[i-1].bd+a[j+1].bd+a[k].zd);
                                                                         ^
0_0_36083766_17898.cpp:90:38: error: 'printf' was not declared in this scope
   printf("Case #%d: %d\n",++k,f[1][n]);
                                      ^