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| #include<stdio.h>
#include<stdlib.h>
#include<conio.h>
#include<io.h>
#include<string.h>
#include<iostream.h>
//----------------------------------
int N_Max(int* A,int N){
//----------------------------------
int i,k=0;
for(i=1;i<N;i++)if(A[k]<A[i])k=i;
return k; }
//----------------------------------
float SR_Mas(int* A,int N){
//----------------------------------
float S=0;
for(int i=0;i<N;i++)S+=A[i];
if(N)S/=N;
return S; }
//----------------------------------
void Str_RND(char* s,int M){
//----------------------------------
char st[]="QWERTYUIOPASDFGHJKLZXCVBNM";
int j,k,L=strlen(st);
k=rand()%M;
for(j=0;j<2+k;j++)s[j]=st[rand()%L];
s[j]='\0'; }
//----------------------------------
int Nom_Pole(){ int i,p; char s[8];
//----------------------------------
do{
cout<<"\n Input nomer polya (1 - 8) for sorting (OR 0 - Exit): ";
gets(s);
p=atoi(s);
}while((p<0)||(p>8));
return p; }
//----------------------------------
// Структура данных:
//----------------------------------
struct Zap{ char Fam[10];
int Bal[4];
float SRED;
int Max;
int Nom; };
//----------------------------------
int Sravnenie(Zap A,Zap B,int p){
//----------------------------------
int b;
switch(p){
case 1:b=strcmp(A.Fam,B.Fam)<0;break;
case 2:case 3:case 4:case 5:
b=A.Bal[p-2]<B.Bal[p-2];break;
case 6:b=A.SRED<B.SRED;break;
case 7:b=A.Max<B.Max;break;
case 8:b=A.Nom<B.Nom;break;
}
return b; }
//-------------------------------------------------
int Input(Zap* Mas,int n); // 0
//-------------------------------------------------
void Input_con(Zap* Mas,int n); // 1
void Input_RND(Zap* Mas,int n); // 2
int Input_bin(FILE* f,Zap* Mas); // 3
void Print_table(FILE *ft,Zap* Mas,int kol); // 4
void Action(Zap* Mas,int kol); // 5
void Sortirovka(Zap* Mas,int kol,int p); // 6
int Save(Zap* Mas,int kol); // 7
void Write_bin(FILE* f, Zap* Mas, int kol); // 8
//-------------------------------------------------
int Input(Zap* Mas){ int N,i;char NF[15]; // 0
//-------------------------------------------------
FILE * ft;
do{
cout<<"\n Input data from :";
cout<<"\n 1- Consol, 2- RND, 3- File, 0- Exit: -> "; cin>>i;
if(!i)exit(0);
if(i<3){cout<<"\n Input kol-vo zapisei: "; cin>>N;}
switch(i){
case 1:Input_con(Mas,N);break; // 1
case 2:Input_RND(Mas,N);break; // 2
case 3:N=0;
cout<<"\n Input File Name: ";cin>>NF;
ft=fopen(NF,"rb");
if(!ft){cout<<"\n File -> no exist!";break;}
N=Input_bin(ft,Mas); fclose(ft); // 3
}
}while(N==0);
return N; }
//==================================================
void main(){ int N,p; clrscr();
//==================================================
Zap* Stud;
N=Input(Stud); // 0
//-----------------------------------
Print_table(stdout,Stud,N);// 4
Action(Stud,N); // 5
Print_table(stdout,Stud,N);// 4
//-----------------------------------
while(p=Nom_Pole()){
Sortirovka(Stud,N,p); // 6
Print_table(stdout,Stud,N);// 4
Save(Stud,N); } // 7
}
//==================================================
//- Описания функций: ----------------------
void Input_con(Zap* Mas,int kol){ Zap z; // 1
//------------------------------------------------
for(int i=0;i<kol;i++){
printf("\n %d). Input FAM: ",i+1); cin>>z.Fam;
for(int j=0;j<4;j++){
printf(" Input BAL %d: ",j+1); cin>>z.Bal[j];
}
z.SRED=0; z.Max=0; z.Nom=0; Mas[i]=z; } }
//------------------------------------------------
void Input_RND(Zap* Mas,int n){ Zap z; // 2
//------------------------------------------------
int i,j;
srand(1);
for(i=0;i<n;i++){ Str_RND(z.Fam,8);
for(j=0;j<4;j++)z.Bal[j]=1+rand()%15;
z.SRED=0; z.Max=0; z.Nom=0;
Mas[i]=z; } }
//-----------------------------------------------
int Input_bin(FILE* f,Zap* Mas){ //3
//-----------------------------------------------
int i=fileno(f);
long L=filelength(i);
int kol=L/sizeof(Zap);
cout<<"\n Kol-vo zapisei="<<kol;
Mas=new Zap[kol];
for(i=0;i<kol;i++)fread(Mas+i,sizeof(Zap),1,f);
return kol; }
//---------------------------------------------------------
void Print_table(FILE *ft,Zap* Mas,int kol){int i,j; // 4
//---------------------------------------------------------
if(ft==stdout)clrscr();
fprintf(ft,"\n ----------1---------2------3------4-------5------6--------7----8---");
fprintf(ft,"\n N Fam B1 B2 B3 B4 SRED Max Nom");
fprintf(ft,"\n -------------------------------------------------------------------");
for(i=0;i<kol;i++){ fprintf(ft,"\n %2d). %10s ",i+1,Mas[i].Fam);
for(j=0;j<4;j++)fprintf(ft," %5d ",Mas[i].Bal[j]);
if(Mas[i].Nom>0)fprintf(ft," %8.2f %6d %4d",
Mas[i].SRED,Mas[i].Max,Mas[i].Nom);
}
fprintf(ft,"\n -------------------------------------------------------------------");
cout<<"\n Press any key for continue ..."; getch();
}
//--------------------------------------------------
void Action(Zap* Mas,int kol){ int i,j; // 5
//--------------------------------------------------
for( i=0;i<kol;i++){
j=N_Max(Mas[i].Bal,4);
Mas[i].Nom=j+1;
Mas[i].Max=Mas[i].Bal[j];
Mas[i].SRED=SR_Mas(Mas[i].Bal,4);
}}
//--------------------------------------------------
void Sortirovka(Zap* Mas,int kol,int p){ // 6
//--------------------------------------------------
int i,j,f,c; Zap z;
cout<<"\n Increasing (A-Z)? (1-Yes, 0-No): "; cin>>c;
for(i=0;i<kol;i++)for(j=i+1;j<kol;j++){
f=Sravnenie(Mas[i],Mas[j],p);
if(c)f=!f;
if(f){z=Mas[i];Mas[i]=Mas[j];Mas[j]=z;}
}}
//---------------------------------------------
int Save(Zap* Mas, int kol){ // 7
//---------------------------------------------
FILE* ft; int L; char NF[15];
cout<<"\n Save in File: 1 - txt, 2 - bin ? (0 - No): ";cin>>L;
if(L>0){cout<<"\n Input File Name: ";cin>>NF;}
switch(L){
case 1:ft=fopen(NF,"wt"); Print_table(ft,Mas,kol);fclose(ft);break;
case 2:ft=fopen(NF,"wb"); Write_bin(ft,Mas,kol); fclose(ft); // 8
}
return L; }
//------------------------------------------------
void Write_bin(FILE* f, Zap* Mas, int kol){ // 8
//------------------------------------------------
for(int i=0;i<kol;i++)fwrite(Mas+i,sizeof(Zap),1,f);
cout<<"\n File *.bin is ready! "; getch();} |
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