每日一水~ 2012-4-24 HDU2002 HDU1004

HDU2002:

#import <stdio.h>#define PI 3.1415927double r;int main() {while (~scanf("%lf",&r)) {printf("%.3lf\n",(4.0/3.0)*PI*r*r*r);}}

HDU 1004:

#import <stdio.h>#import <string.h>int n;struct word {int num;char w[16];}wordlist[1001];int tot;char tmp[16];int main() {while (scanf("%d",&n),n) {tot=0;for (int i=0; i<n; ++i) {scanf("%s",tmp);int flag=0;for (int j=0; j<tot; ++j) {if(strcmp(wordlist[j].w,tmp)==0) {wordlist[j].num++; flag=1; break;}}if(!flag) {wordlist[tot].num=1;strcpy(wordlist[tot++].w,tmp);}}int max=-1, maxp =-1;for (int i=0; i<tot; ++i) {if(wordlist[i].num > max) {max=wordlist[i].num; maxp=i;}}printf("%s\n",wordlist[maxp].w);}}