求 int 的上限与下限#include //运行时间长,请等待. int main(){ int min ,max; FILE *fin,*fout; fin=fopen("min of int.out","wb"); fout=fopen("max of int.out","wb"); for(min=-1;min<0;) { min-- ; } fprintf(fin,"%d\n",min+1); for(max=1;max>0;) { max++ ; } fprintf(fout,"%d\n",max-1); fclose(fin); fclose(fout); return 0; }1-1#include int main(){ int a,b,c; scanf("%d%d%d",&a,&b,&c); double average; average=(a+b+c)/3.0; //一定要将 int 型转为浮点型 printf("Average=%.3lf",average ); system("pause"); return 0; }1-2#include int main(){ double f,c; printf("请输入华氏温度 f\n"); scanf("%lf",&f); c=(f-32)*5/9 ; printf("摄氏温度 c=%.3lf\n",c); system("pause"); return 0; }1-3#include int main(){ int n; scanf("%d",&n); printf("%d\n",(1+n)*n/2) ; system("pause"); return 0; }1-4#include #include int main(){ const double pi =4.0*atan(1.0); int n; scanf("%d",&n); while(n>=360) { printf("请输入不不小于 360°的角\n"); scanf("%d",&n); } printf("正弦:%lf\n 余弦:%lf",sin(n*pi/180),cos(n*pi/180)); system("pause"); return 0; }1-5#include #include int main(){ double x1,y1,x2,y2; printf("请输入点 A 的坐标\n"); scanf("%lf%lf",&x1,&y1); printf("请输入点 B 的坐标\n"); scanf("%lf%lf",&x2,&y2); double d; d=sqrt((x1-x2)*(x1-x2)+(y1-y2)*(y1-y2)); printf("%.3lf\n",d); system("pause"); return 0; }1-6#include int main(){ int a; scanf("%d",&a); if(a%2==0)printf("该数是偶数"); else printf("该数非偶数"); system("pause"); return 0; }1-7#include int main(){ const int a=95; int n; printf("你要买多少件衣服\n"); scanf("%d",&n); if(a*n>=300)printf("需要%.2lf 元\n",a*n*0.85); else printf("需要%.2lf 元\n",(double)a*n); //由于输出是小数%.2lf,故一定要将 int 型转化为浮点型 system("pause"); return 0; }1-8#include #include int main(){ double a; scanf("%lf",&a...
