Day 6, Lanternfish

[int day=6; string name="Lanternfish";]
--------------------------------------------------------------------------------------
[int part=1;]
--------------------------------------------------------------------------------------
#include<bits/stdc++.h>
using namespace std;
long long n,d,a[100000000],f;
char s;
void displaytext(string t,double delay,bool end){
	int i=0;
	while (t[i]!='\0'){
		cout<<t[i];
		usleep(1000000*delay);
		i++;
	}
	if(end)cout<<endl;
}
int main(){
	displaytext("Enter amount of Lanternfish.",0.1,true);
	cin>>n;
	displaytext("Enter Lanternfish data.",0.1,true);
	for(int i=1;i<=n;i++){
		cin>>s;
		if(s==',')cin>>s;
		a[i]=s-'0';
	}
	displaytext("Enter amount of days for simulation.",0.1,true);
	cin>>d;
	displaytext("Processing...",0.05,false);
	sleep(1);
	for(int i=1;i<=d;i++){
		f=0;
		for(int j=1;j<=n;j++){	
			if(a[j]==0)a[j]=7,f++;
			a[j]--;
		}
		for(int j=1;j<=f;j++)n++,a[n]=8;
	}
	displaytext("\nAmount of Lanternfish after "+to_string(d)+" days:",0.05,false);
	sleep(1);
	displaytext(to_string(n),0.05,false);
	return 0;
}

--------------------------------------------------------------------------------------
[int part=2;]
--------------------------------------------------------------------------------------

#include<bits/stdc++.h>
using namespace std;
unsigned long long n,d,a[100000000],b[10],sa,sb;
char s;
void displaytext(string t,double delay,bool end){
	int i=0;
	while (t[i]!='\0'){
		cout<<t[i];
		usleep(1000000*delay);
		i++;
	}
	if(end)cout<<endl;
}
int main(){
	displaytext("Enter amount of Lanternfish.",0.05,true);
	cin>>n;
	displaytext("Enter Lanternfish data.",0.05,true);
	for(int i=1;i<=n;i++){
		cin>>s;
		if(s==',')cin>>s;
		a[i]=s-'0';
		b[a[i]]++;
	}
	displaytext("Enter amount of days for simulation.",0.05,true);
	cin>>d;
	displaytext("Processing...",0.05,false);
	sleep(1);
	for(int i=1;i<=d;i++){
		for(int j=1;j<=8;j++)b[j-1]=b[j];
		b[8]=sa;
		b[6]+=sa;
		sa=b[0];
	}
	n=0;
	for(int i=0;i<=8;i++)n+=b[i];
	displaytext("\nAmount of Lanternfish after "+to_string(d)+" days:",0.05,false);
	sleep(1);
	displaytext(to_string(n),0.05,false);
	return 0;
}