#include<iostream.h>
#include<conio.h>
class Tasizan{
float x,y;
int wa;
public:
void Set(float a,float b){
x=a;y=b;
}
void Keisan(void){wa=x+y;}
float Wa(void){return wa;}
};
int main(void)
{
Tasizan t;
float a,b;
cout<<"x y?";cin>>a>>b;
t.Set(a,b);
t.Keisan();
cout<<"wa="<<t.Wa();

getch();
return 0;

}

rei7_2

#include<iostream.h>
#include<conio.h>
class Tasizan{

float x,y;
int wa;
public:
void Set(float a,float b)
{
x=a;y=b;
}
void Keisan(void){wa=x+y;}
float Wa(void){return wa;}
};
int main(void)
{
Tasizan t;
float a,b;
cout<<"x y?";cin>>a>>b;
t.Set(a,b);
t.Keisan();
cout<<"wa="<<t.Wa();

getch();
return 0;

}

rei7_3

#include<iostream.h>
#include<conio.h>
class Tasizan{

float x,y;
int wa;
public:
void Set(float ,float );
void Keisan(void);
float Wa(void);
};
void Tasizan::Set(float a,float b){
x=a;y=b;
};

void Tasizan::Keisan(void){wa=x+y;}
float Tasizan::Wa(void){return wa;}

int main(void)
{
Tasizan t;
float a,b;
cout<<"x y?";cin>>a>>b;
t.Set(a,b);
t.Keisan();
cout<<"wa="<<t.Wa();

getch();
return 0;

}

rei7_4

#include<iostream.h>
#include<conio.h>
class Total{
int n,sum;
public:
void SetN(int a){n=a;}
Total(int b){sum=b;}
void Keisan(void){
//sum=0;
for(int i=1;i<=n;i++)
sum+=i;
}
int Sum(void){return sum;}
};
int main(void){
Total t(10);
int a;
cout<<"n?";cin>>a;
t.SetN(a);
t.Keisan();
cout<<"sum="<<t.Sum()<<endl;

ren7_2

#include<iostream.h>
#include<conio.h>
class Counter{

int c;
public:
Counter(void){c=0 ;}
~Counter(){}

void Ctr(void){c++ ;}
float C(void){return c ;}
};
int main(void)
{
Counter c;
int n=0;
while(c.C()<=500){
c.Ctr();

}
cout<<"c="<<c.C()<<endl;
getch();
return 0;

}

ren7_3

#include<iostream.h>
#include<math.h>
#include<conio.h>
class Weight{
int n;
float w[100],kei,heikin,sd,max,min;
public:
Weight(){kei=0.0;}
~Weight(){}
void Input(float t,int m){w[m]=t;}
int N(int m){n=m;}
void Total(void){
for(int i=0;i<n;i++)
kei+=w[i];
}
void Mean(void){heikin=kei/n;}
void SD(void){
float sd0=0.0;
for(int i=0;i<n;i++)
sd0+=(w[i]-heikin)*(w[i]-heikin);
sd=sqrt(sd0/n);
}
void MaxMin(void){
max=min=w[0];
for(int i=1;i<n;i++){
if(w[i]>max) max=w[i];
if(w[i]>min) min=w[i];

}
}
float Kei(void){return kei;}
float Heikin(void){return heikin;}
float Sd(void){return sd;}
float Max(void){return max;}
float Min(void){return min;}
};
int main(void)
{
Weight w;
int m=0;
float t;
while(1){
cout<<"No."<<m+1<<"?";cin>>t;
if(t==0.0) break;
w.Input(t,m);
m++;
}
w.N(m);
w.Total();
w.Mean();
w.SD();
w.Max();
w.Min();
cout<<"kei="<<w.Kei()<<endl
<<"heikin="<<w.Heikin()<<endl
<<"sd="<<w.Sd()<<endl
<<"max="<<w.Max()<<endl
<<"min="<<w.Min()<<endl;

getch();
return 0;

}

#include<iostream.h>

#include<conio.h>

class Enzan{

float x,y;

int wa,sa,seki,syo;

public:

void Set(float a,float b)

{

x=a;y=b;

}

void Keisan(void){

wa=x+y;

sa=x-y;

seki=x*y;

syo=x/y;

}

float Wa(void){return wa;}

float Sa(void){return sa;}

float Seki(void){return seki;}

float Syo(void){return syo;}

};

int main(void)

{

Enzan e;

float a,b;

cout<<"x y?";cin>>a>>b;

e.Set(a,b);

e.Keisan();

cout<<"wa="<<e.Wa()<<endl;

cout<<"sa="<<e.Sa()<<endl;

cout<<"seki="<<e.Seki()<<endl;

cout<<"syo="<<e.Syo()<<endl;

getch();

return 0;

}

ren7_1

#include<iostream.h>

#include<conio.h>

class Person{

char name[20],address[50];

public:

void SetName(char* n){strcpy(name,n);}

void SetAddress(char* n){strcpy(address,n);}

char* Name(void){return nam

#include<iostream.h>
#include<conio.h>

void name(void);
int main(void){
name();

getch();
return 0;
}
void name(void){
cout<<"yaginuma"<<endl;
}

6-2

#include<iostream.h>
#include<conio.h>

void menseki1(float x,float y);
int main(void){
float x,y;
cout<<"x y?";cin>>x>>y;
menseki1(x,y);
getch();
return 0;
}
void menseki1(float x,float y){
cout<<"s="<<x*y<<endl;
}

6-3

#include<iostream.h>
#include<conio.h>
void pstring(char* japan);
int main(void)
{
char* japan="JAPAN";
pstring(japan);
getch();
return 0;
}
void pstring(char* japan)

{
cout<<japan<<endl;
}

6-4

#include<iostream.h>
#include<conio.h>
void ave(int n,float height[]);
int main(void)
{
int n;
float height[10];
cout<<"n?";cin>>n;
for(int i=0;i<n;i++){
cout<<"No."<<i+1<<"?";
cin>>height[i];
}
ave(n,height);
getch();
return 0;
}
void ave(int n,float height[])
{
float sum=0.0;
for(int i=0;i<n;i++)
sum+=height[i];
cout<<"ave="<<sum/n<<endl;
}

6-5

#include<iostream.h>
#include<conio.h>

float menseki1(float a);
int main(void)
{
float r;
cout<<"r?";cin>>r;
cout<<"s="<<menseki1(r)<<endl;

getch();
return 0;
}
float menseki1(float a)
{
float s;
s=M_PI*a*a;
return s;
}#include<iostream.h>
#include<conio.h>

float menseki1(float a);
int main(void)
{
float r;
cout<<"r?";cin>>r;
cout<<"s="<<menseki1(r)<<endl;

getch();
return 0;
}
float menseki1(float a)
{
float s;
s=M_PI*a*a;
return s;
}

6-7

#include<iostream.h>
#include<conio.h>
float wa(float a=100,float b=200,float c=300);
int main(void)
{
float a,b,c;
cout<<"a b c?";cin>>a>>b>>c;
cout<<"wa="<<wa(a,b,c)<<endl;
getch();
return 0;
}
float wa(float a,float b,float c)
{
return a+b+c;
}

6-8

#include<iostream.h>
#include<conio.h>
void print(float a);
void print(char a[]);
int main(void)
{
char a[]="yaginuma";
print(2.71828);
print("yaginuma");
getch();
return 0;
}
void print(char a[])
{
cout<<a<<endl;
}
void print(float a)
{
cout<<a<<endl;
}

―期末テスト範囲―

・rei6-1.2.4.5.

・ren2.3.4.5

#include<iostream.h>
#include<conio.h>

void name(void);
int main(void)
{

name();
getch();
return 0;
}
void name(void)
{
cout<<"00 yaginuma"<<endl;
}

6-2

#include<iostream.h>
#include<conio.h>

float v(float a);
int main(void)
{
float r;
cout<<"r=";cin>>r;
cout<<"taiseki"<<v(r);

getch();
return 0;
}
float v(float r)
{
return 4.0*M_PI*r*r/3.0;
}

6-3

#include<iostream.h>
#include<conio.h>
float s(float,float);
int main(void)
{
float a,h;
cout<<"h?";cin>>h;
cout<<"n?";cin>>h;
cout<<"s="<<s(a,h)<<endl;

getch();
return 0;
}
float s(float a,float h)
{
return a*h/2.0;
}

6-4

#include<iostream.h>
#include<conio.h>
unsigned long total(int);
int main(void)
{
int n;
cout<<"n?";cin>>n;
cout<<n<<"sum="<<total(n)<<endl;

getch();
return 0;
}
unsigned long total(int n)
{
unsigned long s=0;
for(int i=1;i<=n;i++){
s +=i; }
return s;
}

6-5

#include<iostream.h>
#include<conio.h>
unsigned long kaijo(long);
int main(void)
{
long n;
cout<<"n?";cin>>n;
cout<<n<<"!="<<kaijo(n)<<endl;
getch();
return 0;

}
unsigned long kaijo(long n)
{
unsigned long k=1;
for(int i=1;i<=n;i++){
k*=i;
}
return k;
}

6-6

#include<iostream.h>
#include<conio.h>
unsigned long kaijo(int);
int main(void)
{
int n,r,c;
cout<<"nからr個取り出す"<<endl
<<"n?";cin>>n;
cout<<"r?";cin>>r;
cout<<"nCr="<<kaijo(n)/kaijo(r)/kaijo(n-r)<<endl;
getch();
return 0;

}
unsigned long kaijo(int n)
{
unsigned k=1;
for(int i=1;i<=n;i++){
k*=i;
}
return k;
}

6-7

#include<iostream.h>
#include<math.h>
#include<conio.h>
double ave(int,double[]);
double sd(int,double,double[]);
int main(void)
{
double x[100],mean;
int n;
cout<<"データ-->";cin>>n;
for(int i=0;i<n;i++)
{
cout<<"x-->";cin>>x[i];
}
mean=ave(n,x);
cout<<"平均値＝"<<mean<<endl;
cout<<"標準偏差＝"<<sd(n,mean,x)<<endl;
getch();
return 0;

}
double ave
(int m,double a[])
{
double t=0;
for(int i=0;i<m;i++)
t +=a[i];
return t/m;
}
double sd(int n,double ave,double x[])
{
double sum=0,s;
for(int i=0;i<n;i++)
sum +=(ave-x[i])*(ave-x[i]);
s=sqrt(sum/n);
return s;
}

6-8

#include<iostream.h>#include<iomanip.h>#include<conio.h>void lank(int,int[]);void histgram(int[]);int main(void){ int n=0,ten[100]; while(1){   cout<<"得点入力"<<endl   <<"終了は999"<<endl;   cin>>ten[n];   if(ten[n]==999)break;   n++; } cout<<"n="<<n<<endl; lank(n,ten); getch(); return 0 ; } void lank(int n,int t[]) { int lank[5]={0},i; for(i=0;i<n;i++){  if(t[i]==100)   lank[4]++; else   lank[t[i]/20]++; } histgram(lank); } void histgram(int ast[]) { clrscr(); cout<<"得点ヒストグラム"<<endl <<"----------------"<<endl; for(int i=0;i<5;i++){     if(i==4){  cout<<setw(2)<<i*20<<"～"  <<setw(3)<<(i+1)*20  <<setw(3)<<ast[i]<<" "; } for(int j=0;j<ast[i];j++){   cout<<"*"; } cout<<endl; } }