CSU 1507 超大型LED显示屏 第十届湖南省赛题

题目链接：http://acm.csu.edu.cn/OnlineJudge/problem.php?id=1507

解题思路：这是一道模拟题，看了那么多人的代码，我觉得我的代码是最简的，哈哈，其实就是分数变幻的时候要计算灯管的亮数复杂一点，我就直接暴力咯

AC代码：

#include <iostream>
#include <cstdio>
#include <cstdlib>
#include <cstring>
using namespace std;
const int M=45000;
int c[10]={6,2,5,5,4,5,6,3,7,6};
char a[5],b[5];
struct node
{
  int x,y,z;
}t[M];
int main()
{
 int ca=1;
  while(1)
  {
    int i=-1,g=0,h=0,x1,y1,z1;
    long long sum=0;
    while(scanf("%s",a)!=EOF)
    {
     scanf("%d:%d:%d",&x1,&y1,&z1);
     i++;
     t[i].x=x1;t[i].y=y1;t[i].z=z1;
     int ans=(t[i].x-t[i-1].x)*3600+(t[i].y-t[i-1].y)*60+t[i].z-t[i-1].z;
     if(strcmp(a,"START")==0) continue;
      if(h>99){sum+=ans*(c[h/100]+c[h/10%10]+c[h%10]);}
      else  if(h>9) {sum+=ans*(c[h/10]+c[h%10]);}
      else sum+=ans*(c[h%10]);
      if(g>99){sum+=ans*(c[g/100]+c[g/10%10]+c[g%10]);}
      else  if(g>9) {sum+=ans*(c[g/10]+c[g%10]);}
      else {sum+=ans*(c[g%10]);}
      if(strcmp(a,"END")==0) break;
      int x2;
      scanf("%s%d",b,&x2);
      if(strcmp(b,"home"))  h+=x2;
      else if(strcmp(b,"guest")) g+=x2;
      }
      if(i==-1) break;
      printf("Case %d: %lld
",ca++,sum);
  }
  return 0;
}

 改善代码：

#include <iostream>
#include <cstdio>
#include <cstdlib>
#include <cstring>
using namespace std;
const int M=45000;
int c[10]={6,2,5,5,4,5,6,3,7,6};
char a[5],b[5];
long long sum;
struct node
{
  int x,y,z;
}t[M];
int work(int x)
{
  if(x==0) return c[0];
  int s=0;
  while(x)
  {
   s+=c[x%10];
   x/=10;
  }
  return s;
}
int main()
{
 int ca=1;
  while(1)
  {
    int i=-1,g=0,h=0,x1,y1,z1;
    sum=0;
    while(scanf("%s",a)!=EOF)
    {
     scanf("%d:%d:%d",&x1,&y1,&z1);
     i++;
     t[i].x=x1;t[i].y=y1;t[i].z=z1;
     int ans=(t[i].x-t[i-1].x)*3600+(t[i].y-t[i-1].y)*60+t[i].z-t[i-1].z;
     if(strcmp(a,"START")==0) continue;
     sum+=ans*(work(h)+work(g));
     if(strcmp(a,"END")==0) break;
     int x2;
     scanf("%s%d",b,&x2);
     if(strcmp(b,"home"))  h+=x2;
     else if(strcmp(b,"guest")) g+=x2;
     }
    if(i==-1) break;
    printf("Case %d: %lld
",ca++,sum);
 }
  return 0;
}