杭电OJ(HDU)-ACM Steps-Chapter Two-《Biker's Trip Odometer》《Climbing Worm》《hide handkerchief》《Nasty Hac》
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http://acm.hdu.edu.cn/game/entry/problem/list.php?chapterid=1§ionid=2
1.2.1 Biker's Trip Odometer #include<stdio.h>#include<math.h>const double PI=acos(-1.0);/*计算题,根据公式做就行,PI*d*r/(12*5280);res1/t*3600;Sample Input26 1000 527.25 873234 300026 0 1000Sample OutputTrip #1: 1.29 928.20Trip #2: 1179.86 1415.84 */int main(){ double d; int r; double t; int iCase=0; while(scanf("%lf%d%lf",&d,&r,&t),r) { iCase++; double res1=PI*d*r/(12*5280); double res2=res1/t*3600; printf("Trip #%d: %.2lf %.2lf\n",iCase,res1,res2); } return 0;} 1.2.2 Climbing Worm#include<stdio.h>#include<math.h>/*Sample Input10 2 120 3 10 0 0 总长为n,上升一秒走u,休息一秒下降d.相当于每两秒走(u-d);先n-u,得到过了多少个u-d后超过n-u;Sample Output1719 */int main(){ int n=1,u=1,d=1; while(scanf("%d %d %d",&n,&u,&d),n) {int t=(n-u)/(u-d); if(t*(u-d)<(n-u)) t++; t*=2; t++; printf("%d\n",t); } return 0;} 1.2.3 hide handkerchief#include<stdio.h>/*丢手绢,用约瑟夫即可解决或者/辗转相除3 2-1 -1*/int main(){int N,M,a;while(scanf("%d%d",&N,&M)==2){if(N==-1&&M==-1)break;while(M!=0&&M!=1){a=N%M;N=M;M=a;}printf("%s\n",M? "YES":"POOR Haha");}return 0;}1.2.4 Nasty Hacks #include<stdio.h>/*题意:e-c 跟r比较。30 100 70100 130 30-100 -70 40*/int main(){int r,e,c;int t;while(scanf("%d",&t)!=EOF){while(t--){scanf("%d%d%d",&r,&e,&c);if(r>(e-c))printf("do not advertise\n"); else if(r<(e-c))printf("advertise\n"); else printf("does not matter\n"); }}return 0;}
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