~cpp
#include<iostream>
using namespace std;

bool team684(int ,int ,int);
void main()
{
	int num=0,gun=0,boat=0;
	team684(num,gun,boat);
}
bool team684(int num,int gun,int boat)
{
	int sum;
	cout<<"대원의 수를 입력하시오.";
	cin >> num;
	cout<<"총의 수를 입력하시오.";
	cin >> gun;
	cout<<"보트의 수를 입력하시오.";			
	cin >> boat;
	sum = num + gun + boat;
	if(num >= 5 && gun >= 1 ){
		if(sum >= 10)
		{
			cout<<"성공!";
		}
		else
		{
			cout<<"실패!";
		}
	}
	else
	{
		cout<<"실패!";
	}
	return 0;
} 

~cpp
#include<iostream>
#include<time.h>

using namespace std;

int die();

void main()
{
	int di;
	srand(time(NULL));
	di = die();
	cout << di;
                cout << "\n";
}
int die()
{
	int num,num_;
	num = rand();
	num_ = num % 6 + 1;
	return num_;
}

~cpp
#include<iostream>
#include<time.h>
using namespace std;

void princess();
void first();
void second();
void third();
void forth();
void fifth();
void sixth();
void seventh();

void main()
{
	princess();
}
void princess()
{
	int num,num_;
	srand(time(NULL));
	num = rand();
	num_ = num%7 +1;
	
	if(num_ == 1){
		first();
	}
	else if(num_ == 2 ){
		second();
	}
	else if(num_ == 3 ){
		third();
	}
	else if(num_ == 4 ){
		forth();
	}
	else if(num_ == 5 ){
		fifth();
	}
	else if(num_ == 6 ){
		sixth();
	}
	else if(num_ == 7 ){
		seventh();
	}
} 
void first()
{
	cout<<"second";
	cout<<"\n";
	second();
}
void second()
{
	cout<<"third";
	cout<<"\n";
	third();
}
void third()
{
	cout<<"forth";
	cout<<"\n";
	forth();
}
void forth()
{
	cout<<"fifth";
	cout<<"\n";
	fifth();
}
void fifth()
{
	cout<<"sixth";
	cout<<"\n";
	sixth();
}
void sixth()
{
	cout<<"seventh";
	cout<<"\n";
	seventh();
}
void seventh()
{
	cout<<"princess";
	cout<<"\n";
}