The 36th ACM/ICPC Asia Regional Beijing Site Online Contest - B_Eliminate Witches!
2011-09-18 21:10
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这道题很水...人名顺序就是输入字符串从左到右的顺序...边的话用一个栈来维护就行了...读入名字的时候就并将这个点与栈顶做一条边 ( 根的时候特判 )然后将这个点压入栈.. "," 与 " ) " 时做边并弹一次栈...." ( "的时候不要做处理.....最后将依次得到的边依次输出即可...开始TLE是因为可耻的用string来存名字...cout来输出...TLE得果断...然后在cout改成printf是有个地方忘记改了...又可耻的WA了一次...囧..
Program:
Program:
#include <iostream> #include <stdio.h> #include <string.h> using namespace std; int T,i,l,n,m,z[50001],p; char s[1000010]; struct pp { int x,y; }line[100001]; char name[50010][12]; int main() { scanf("%d",&T); getchar(); while (T--) { memset(name,0,sizeof(name)); gets(s); l=strlen(s); n=0; m=0; i=0; p=0; int cnt = 0; while (i<l) { if (s[i]>='a' && s[i]<='z') { n++; strcpy(name ,""); cnt = 0; while (s[i]>='a' && s[i]<='z') { name [cnt]+=s[i]; i++; cnt++; } name [cnt] = 0; if (p) { m++; line[m].x=z[p]; line[m].y=n; } p++; z[p]=n; }else if (s[i]=='(') i++; else if (s[i]==')' || s[i]==',') { m++; line[m].x=z[p]; line[m].y=z[p-1]; p--; i++; } } printf("%d\n",n); for (i=1;i<=n;i++) printf("%s\n",name[i]); for (i=1;i<=m;i++) printf("%d %d\n",line[i].x,line[i].y); printf("\n"); } return 0; }
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