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Hàm đếm số ký tự

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Hàm đếm số ký tự

Post  Admin on Thu Apr 28, 2011 1:03 am

Code:
#include "stdio.h"
#include "conio.h"
#include "string.h"

//------------------------------------------------------------
void nhapsl(char &ch,char st[100])
{
    printf("\n Nhap mot chuoi ky tu: ");
    fflush(stdin);
    gets(st);
    printf("\n Nhap mot ky tu: ");
    fflush(stdin);
    ch=getch();
}
//------------------------------------------------------------
int demkytu(char ch,char st[100])
{
    int i,x,n;
    n=strlen(st);
    for(i=0,x=0;i<n;i++)
    {
        if (st[i]==ch)
            x++;
    }
    return x;
}
//------------------------------------------------------------
void inkq(char ch,char *st)
{
    printf("\n Co %d ky tu %c duoc su dung trong chuoi ",demkytu(ch,st),ch);
}
//------------------------------------------------------------
void main()
{
    char ch,st[100];

    nhapsl(ch,st);
    inkq(ch,st);
    getch();

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