简单的火车票售票系统-单线

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该火车票系统为单线，F 查询该路段最小车票数 S 售出车票

#include<iostream>#include<stdio.h>#include<cstring>#include<cctype>using namespace std;int main(){int n,i,j,m,f=0,p,q,min,a[32][32];char s[50],s1[10],s2[10],b[32][10];cin>>n;//int **a=new int*[n];//char **b=new char*[n];i=0;while(i<n){  cin>>b[i];  i++;}cin>>m;for(i=0;i<n;i++){  for(j=0;j<n;j++)  {    if(i<j)a[i][j]=m;elsea[i][j]=0;  }}while(gets(s)){if(s[0]=='F'){i=0;j=0;  while(s[i]!='\0'&&(!((s[i]-'0'>=0)&&(s[i]-'9'<=0))))  {     i++;  }  while(s[i]!='\0'&&s[i]!=' ')  {     s1[j++]=s[i++];  }  s1[j]='\0';  j=0;  while(s[i]!='\0')  {if((s[i]-'0'>=0)&&(s[i]-'9'<=0))      s2[j++]=s[i];i++;  }      s2[j]='\0';  for(i=0;i<n;i++)  {     if(strcmp(b[i],s1)==0) {p=i; } if(strcmp(b[i],s2)==0) {q=i; }  }  if(p!=q&&p<q&&p>=0&&q>=0)  {     min=m; for(i=p;i<q;i++) {if(min>a[i][i+1])     min=a[i][i+1]; } cout<<min<<endl;  }else  cout<<0<<endl;}else if(s[0]=='S'){  i=0;j=0;  while(s[i]!='\0'&&(!((s[i]-'0'>=0)&&(s[i]-'9'<=0))))  {     i++;  }  while(s[i]!='\0'&&s[i]!=' ')  {     s1[j++]=s[i++];  }  s1[j]='\0';  j=0;  while(s[i]!='\0')  {   if((s[i]-'0'>=0)&&(s[i]-'9'<=0))      s2[j++]=s[i];i++;  }      s2[j]='\0';  for(i=0;i<n;i++)  {     if(strcmp(b[i],s1)==0) {p=i; } if(strcmp(b[i],s2)==0) {q=i; }  }  for(i=p;i<q;i++)  {  if(a[i][i+1]<=0)         f=1;  }  if(f!=1&&p<q)  {   for(i=p;i<q;i++)   {        a[i][i+1]--;   }  }else  {    cout<<-1<<endl;  }}}return 0;}

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