code giai mot so bai tap thuong gap ve ham va mang minh tu viet nhe cac ban co the tham khao cho nao k hieu hay sai cac ban cho y kien nhe

hothixuan51(k18) 17/4/2016, 18:26

// nhap_xuat_mang.cpp : Defines the entry point for the console application.
//

Code:: #include "stdafx.h" #include "conio.h" #include "iostream" #include "math.h" using namespace std; void nhapmang(int a[],int n) { //cout<<"nhap so phan tu cua mang :"; for(int i=0;i<n;i++) { cout<<"a["<<i+1<<"]:"; cin>>a[i]; } } void xuatmang(int a[],int n) { for(int i=0;i<n;i++) { cout<<"\n\t\t+"<<"\t a["<<i+1<<"]:"<<a[i]; } } //tinh tong cua mang int tinhtong(int a[],int n) { int kq=0; for(int i=0;i<n;i++) { kq+=a[i]; } return kq; } // sap xep mang tang dan neu lam sap xep mang giam dan chi can thay thanh if(a[i]<a[j]) la duoc void sapxep(int a[], int n) { for(int i=0;i<n-1;i++) { for(int j=i+1;j<n;j++) { if(a[i]>a[j]) { int tam=a[i]; a[i]=a[j]; a[j]=tam; } } } } //dem so phan tu khac nhau trong mag int dem ( int a[] , int n ) { int dem = 1; sapxep(a,n); for ( int i = 1 ; i < n ; i++) { if ( a[i] != a[i-1]) dem++; } return dem ; } //ham hoan doi vitri cac phan tu void hoandoi(int a,int b) { int hd=a; a=b; b=hd; } void hoandoivitrimang(int a[],int n) { for(int i=0; i<n; i++) { if(a[i]>a[i+1]) hoandoi(a[i],a[i+1]); } } //liet ke cac phan tu cua mang void lietke(int a[],int n) { for(int i=0;i<n;i++) cout<<" "<<a[i]; } int tinhtbcuamang(int a[],int n) { int tb; tinhtong(a,n); tb=tinhtong(a,n)/n; return tb; } //tim phan tu lon nhat trong mang int timmax(int a[],int n) { int max; for(int i=0;i<n;i++) { if(a[i]<a[i+1]) max=a[i+1]; } return max; } int timmin(int a[],int n) { int min=a[1]; for(int i=0;i<n;i++) { if(min>a[i]) min=a[i]; } return min; } void main () { int a[100],n; do{ cout<<"nhap so pt:"; cin>>n; } while (n==0); nhapmang(a,n); cout<<"mang vua nhap la :"; xuatmang(a,n); cout<<"\n tong cua mang = "<<tinhtong(a,n); cout<<"\n-----------------------------------"; sapxep(a,n); cout<<"\n------------------------------------"; cout<<"\nmang sap xep tang dan la:"; xuat mang(a,n); cout<<"\n------------------------------------"; cout<<"\n so pt mang khac nhau la :"<<dem(a,n); hoandoivitrimang(a,n); cout<<"\n-----------------------------------"; cout<<"\ncac phan tu mang sau khi hoan doi "; xuatmang(a,n); cout<<"\n------------------------------------"; cout<<"\nso phan tu vua nhap vao la:"; lietke(a,n); cout<<"\n------------------------------------"; cout<<"\ntong trung binh cua mang la:"<<tinhtbcuamang(a,n); cout<<"\n ------------------------------------"; cout<<"\nso phan tu lon nhat trong mang la:"<<timmax(a,n); cout<<"\n- -----------------------------------"; cout<<"\nso phan tu nho nhat trong mang la:"<<timmin(a,n); _getch(); }