3/11/2019 C++ Assignment

#include <conio.h>
#include <stdio.h>
#include <iostream.h>
#include <string.h>
#include <stdlib.h>
#include <iomanip.h>

char name[100][100],sect[100][100],cont[100][100];
int cnt=0;
void add(),view(),search(),del();


void main(){
 clrscr();
 int opt;
 cout<<"menu: \n";
 cout<<"1. add\n2. view\n3. search\n4. delete\n5. exit\n";
 cin>>opt;
 switch (opt){
  case 1: add(); break;
  case 2: view(); break;
  case 3: search(); break;
  case 4: del(); break;
  default: exit(0);
 }
}

void add(){
 clrscr();
 cout<<"Name: ";
 gets(name[cnt]);
 cout<<"section: ";
 gets(sect[cnt]);
 cout<<"contact number: ";
 gets(cont[cnt]);
 cout<<"added success!";
 cnt++;
 getch();
 main();
}

void view(){
 clrscr();
 cout<<"\tName\tcourse/section\tcontact\n";
 for (int i=0;i<cnt;i++){
  cout<<"["<<i<<"]\t"<<name[i]<<"\t"<<sect[i]<<"\t"<<cont[i]<<endl;
 }
 getch();
 main();
}

void search(){
 clrscr();
 char sname[100];
 int opt=0,index=0,trig=0;
 cout<<"search for:\n1. Index\n2. name\n";
 cin>>opt;
 switch (opt){
  case 1:
    cout<<"search for index: ";
    cin>>index;
    for(int i=0;i<cnt;i++){
    if(index==i){
    cout<<"["<<i<<"]\t"<<name[i]<<"\t"<<sect[i]<<"\t"<<cont[i]<<endl;
    trig=1;
    }
    }
    if(trig==0){
     cout<<"no records found...";
    }
    break;
  case 2:
    cout<<"search for name: ";
    gets(sname);
    for (int j=0;j<cnt;j++){
     if(!strcmp(sname,name[j])){
      cout<<"["<<j<<"]\t"<<name[j]<<"\t"<<sect[j]<<"\t"<<cont[j]<<endl;
     trig=1;
     }
    }
    if(trig==0){
     cout<<"no records found...";
    }
    break;
  default: main();
 }
 getch();
 main();
}

void del(){
 clrscr();
 char dname[100];
 int opt=0,index=0,trig=0;
 cout<<"search for:\n1. Index\n2. name\n";
 cin>>opt;
 switch (opt){
  case 1:
    cout<<"search for index: ";
    cin>>index;
    for(int i=0;i<cnt;i++){
    if(index==i){
     for(int k=i;k<cnt;k++){
      strcpy(name[k],name[k+1]);
      strcpy(sect[k],sect[k+1]);
      strcpy(cont[k],cont[k+1]);
      }
     trig=1;
     cout<<"delete successful...";
     }
    }
    if(trig==0){
     cout<<"no records found...";
    }
    break;
  case 2:
    cout<<"search for name: ";
    gets(dname);
    for (int j=0;j<cnt;j++){
     if(!strcmp(dname,name[j])){
       for(int l=j;l<cnt;l++){
      strcpy(name[l],name[l+1]);
      strcpy(sect[l],sect[l+1]);
      strcpy(cont[l],cont[l+1]);
      }
     trig=1;
     cout<<"delete successful...";
     }
    }
    if(trig==0){
     cout<<"no records found...";
    }
    break;
  default: main();
 }
 getch();
 cnt--;
 main();
}