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#include <iostream>
#include <math.h>
using namespace std;
const int N = 220;
int ctrl = 0;
div_t t;
void add(int a[N], int b[N], int c[N]){
  memset(c, 0, sizeof(int)*N);
  int i = 0;
  for(i = N - 1; i >= 0; i--){
    if(t.quot){
      c[i]++;
      if(i < ctrl) ctrl = i;
    }
    t = div((c[i] + a[i] + b[i]),10);
    c[i] = t.rem;
  }
}
int main()
{
 int fib0[N];int fib1[N];int fib2[N];
 memset(fib0, 0, sizeof(int)*N);
 memset(fib1, 0, sizeof(int)*N);
 memset(fib2, 0, sizeof(int)*N);
 int n;
 cin>>n;
 fib0[N - 1] = 1;fib1[N - 1] = 1;
 ctrl = N - 1;
 if(n<2) fib2[N - 1] = 1;
 for (int i = 2;i <= n;i++)
 {
   add(fib0, fib1, fib2);
   memmove(fib0, fib1, sizeof(int)*N);
      memmove(fib1, fib2, sizeof(int)*N);
 }
 for(int i = ctrl; i < N; i++) cout<<fib2[i];
 return 0;
}

prog.cpp: In function ‘void add(int*, int*, int*)’:
prog.cpp:8:29: error: ‘memset’ was not declared in this scope
   memset(c, 0, sizeof(int)*N);
                             ^
prog.cpp: In function ‘int main()’:
prog.cpp:22:31: error: ‘memset’ was not declared in this scope
  memset(fib0, 0, sizeof(int)*N);
                               ^
prog.cpp:33:37: error: ‘memmove’ was not declared in this scope
    memmove(fib0, fib1, sizeof(int)*N);
                                     ^

Standard output is empty