1.
#include <stdio.h>void main(){ char a,b,c,d,e; a=getchar(); b=getchar(); c=getchar(); d=getchar(); e=getchar(); putchar(a); putchar(b); putchar(c); putchar(d); putchar(e);}
2.
#include <stdio.h>void main(){int year; printf("input the year:"); scanf("%d",&year); if(year%100!=0&&year%4==0||year%100==0&&year%400==0) printf("year:%d,month:2,days:29",year); else printf("year:%d,month:2,days:28",year);}3.
#include <stdio.h>void main(){ int a,b,c; scanf("%d,%d,%d",&a,&b,&c); if(a+b<c&&a+c<b&&b+c<a) printf("NO\n"); else { if(a==b||a==c||b==c) { if(a==b&&a==c&&b==c) printf("三角形是等边三角形\n"); else printf("三角形是等腰三角形\n"); } else if(a*a+b*b==c*c||b*b+c*c==a*a||c*c+b*b==a*a) printf("三角形是直角三角形\n"); else printf("三角形是一般三角形\n");}}
4.
#include <stdio.h>void main(){ int a,c; double rate,tax,profit; printf("输入奖金："); scanf("%d",&a); if(a>=5000) c=10; else c=a/500; switch(c) { case 0:rate=0;break; case 1:rate=0.05;break; case 2: case 3: case 4:rate=0.08;break; case 5: case 6: case 7: case 8: case 9:rate=0.10;break; case 10:rate=0.15;break; } tax=rate*a; profit=a-tax;printf("税率值%lf,应缴税款%d,实得奖金数%d\n",rate,tax,profit);}
转载于:https://www.cnblogs.com/P201821430034/p/10769024.html
