White Leather Chapter 1

Today mainly do some 1.5 in the summary and practice, sure enough to change the language thinking ... All kinds of uncomfortable ah ...

scanf all kinds of forgotten &, there are all kinds of forgotten return 0 ...

#include <stdio.h>#include<math.h>int  main () {    int  a,b,c;     Double Ave;    scanf ("%d%d%d",&a,&b,&c);    Ave= (a+b+c)/3;    printf ("%.3lf", ave);     return 0 ;}

Average

#include <stdio.h>#include<math.h>int  main () {    double  f,c;    scanf ("%lf",&f);    c=5* (f-C)/9;    printf ("%.3lf", c);     return 0 ;}

Temperature

#include <stdio.h>#include<math.h>int  main () {    int  n,s;    scanf ("%d",&N);    s= (1+n) *n/2;    printf ("%d", s);     return 0 ;}

sum

#include <stdio.h>#include<math.h>intMain () {intN; Doublem; Const DoublePi=4.0*atan (1.0); scanf ("%d",&N); M=(float) n/ the*Pi; printf ("%.3LF%.3LF", Sin (m), cos (m)); return 0;}

Sincos

#include <stdio.h>#include<math.h>int  main () {    double  x1, Y1,x2,y2,d;    scanf ("%lf%lf%lf%lf",&x1,&y1,&x2,&y2);    D=sqrt ((x1-x2) * (X1-X2) + (y1-y2) * (y1-y2));    printf ("%.3lf", D);     return 0 ;}

Distance

White Leather Chapter 1