1 số bài thực hành số 3

by Salem Sun Mar 08, 2009 7:52 pm

Bài số 2:

Code:: /*Viet ham kiem tra so nguyen to, in ra cac so NT < m nhap tu ban phim */ #include <stdio.h> #include <conio.h> int test_Nto(int a) { int k; for (k=2; k<=a/2; k++) if (a%k==0) return(0); return(1); } void main() { int i, m; printf("\nNhap so nguyen duong m = "); scanf("%d", &m); printf("\nCac so nguyen to nho hon hoac bang m la:\n\n"); for (i=2; i<=m; i++) if (test_Nto(i)) printf("%5d",i); getch(); }

Bài số 3:

Code:: #include <stdio.h> #include <conio.h> void Nhap_Tu_Mau(int *a, int *b) { printf("\nNhap vao tu so: "); scanf("%d",a); printf("\nNhap vao mau so: ");scanf("%d",b); } int UCLN(int a, int b) { if (b==0) return(a); else return UCLN(b,(a%b)); } void toigian(int a, int b) { printf("\n%d/%d = %d/%d", a, b, a/UCLN(a,b), b/UCLN(a,b)); } void main() { int a, b; Nhap_Tu_Mau(&a,&b); if (b==0) printf("\nKhong ton tai phan so co mau bang 0"); else { UCLN(a,b); toigian(a,b); } getch(); }

Bài số 4:

Code:: #include <stdio.h> #include <conio.h> void main() { clrscr(); int i, n; float x, a[30], S; printf("\nChuong trinh tinh gia tri cua da thuc bac n nhap tu ban phim\n"); printf("\nNhap bac cua da thuc can tinh n = "); scanf("%d", &n); printf("\nNhap vao gia tri cho bien x = "); scanf("%f",&x); printf("\nNhap vao cac he so tu a[%d] den a[0] cua da thuc\n",n); for (i=n; i>=0; i--) { printf("\n a[%d] = ",i); scanf("%f",&a[i]);} S=a[n]; for (i=n; i>0; i--) S=S*x + a[i-1]; printf("\nBieu thuc S = %6.2f *%6.2f^%d + %6.2f *%6.2f^%d + ... + %6.2f = %f",a[n],x,n,a[n-1],x,n-1,a[0],S); getch(); }

Bài số 5:

Code:: #include <stdio.h> #include <conio.h> void main() { int i, m, n, du=1; printf("\nTim hai chu so cuoi cua m luy thua n"); printf("\nNhap m = "); scanf("%d",&m); printf("\nNhap n = "); scanf("%d",&n); for (i=1; i<=n; i++) du =(du*m)%100; if (du<10) printf("\nHai chu so cuoi cua %d^%d la: 0%d",m,n,du); else printf("\nHai chu so cuoi cua %d^%d la: %d",m,n,du); getch(); }

Mong mọi người góp ý thêm

by Salem Tue Mar 10, 2009 5:32 am

Bài số 7

Code:: #include <stdio.h> #include <conio.h> int a, b, c, d, x, y, X, Y, BC; void Nhap_Tu_Mau(int *a, int *b) { printf("\nNhap vao tu so: "); scanf("%d",a); printf("\nNhap vao mau so: ");scanf("%d",b); } int UCLN(int a, int b) { return (b==0)?a: UCLN(b,(a%b)); } int BCNN(int b, int d) { return (b*d/UCLN(b,d)); } int tong() { return (a*BC/b+c*BC/d); } int hieu() { return (a*BC/b-c*BC/d); } void tich() { if ((a==0)||(c==0)) printf("0"); else { x = a*c; y=b*d; } } void thuong() { if (c==0) {printf("\nKhong chia duoc cho so 0"); return; } else if (a==0) printf("0"); else { X = a*d; Y=b*c;} } void toigian(int m, int n) { int ts, ms; ts = m/UCLN(m,n); ms = n/UCLN(m,n); printf("%d/%d", ts,ms); } void main() { Nhap_Tu_Mau(&a,&b); Nhap_Tu_Mau(&c,&d); if ((b==0)||(d==0)) printf("\nKhong ton tai phan so co mau bang 0"); else { BC=BCNN(b,d); printf("\nHai phan so: %d/%d va %d/%d co:\n ",a,b,c,d); printf("\n %d/%d + %d/%d = ",a,b,c,d); toigian(tong(),BC); printf("\n %d/%d - %d/%d = ",a,b,c,d); toigian(hieu(),BC); printf("\n %d/%d * %d/%d = ",a,b,c,d); tich(); if ((a!=0)&&(c!=0)) toigian(x,y); printf("\n %d/%d : %d/%d = ",a,b,c,d); thuong(); if ((a!=0)&&(c!=0)) toigian(X,Y); } getch(); }

Re: 1 số bài thực hành số 3