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求助:为什么总是WR啊?#include<cstdio>
#include<cstring>
#include<algorithm>
using namespace std;
int big;
int s[11][2500];
bool b[2500][2500];
struct Book
{
int v;
char re[32];
char ch[32];
}book[2501];
struct Name
{
char c[35];
} name[11];
bool bb(Book b1,Book b2)
{
return strcmp(b1.ch,b2.ch)<0;
}
bool cmp(Name a,Name b)
{
return strcmp(a.c,b.c)<0;
}
inline void change(char a[],char b[])
{
int i=0,k=0;
while(a[i]){
if(a[i]>='a'&&a[i]<='z'||a[i]>='A'&&a[i]<='Z'){
b[k]=a[i];
k++;
}
i++;
}
b[k]='\0';
}
inline bool ok(char a[],char b[])
{
int i=0;
while(a[i]&&b[i]&&toupper(a[i])!=toupper(b[i]))i++;
if(a[i]&&b[i])return 0;
return 1;
}
void dfs(int le,int ma,int c[],int n)
{
int i;
if(le==0)return ;
for(i=n;i>=0;--i){
if(s[le][i]==ma){
c[le]=i;
dfs(le-1,ma-book[i].v,c,n);
return ;
}
}
big=le-1;
dfs(le-1,ma,c,n);
}
int main()
{
int i,n,j,k;
char c;
scanf("%d",&n);
{
for(i=0;i<n;++i){
scanf("%d%c",&book[i].v,&c);
int j=0;
while(scanf("%c",&c),c!='\n'){
book[i].re[j]=c;
j++;
}
book[i].re[j]='\0';
}
for(i=0;i<n;++i){
change(book[i].re,book[i].ch);
}
sort(book,book+n,bb);
for(i=0;i<n;++i){
for(j=i+1;j<n;++j){
if(ok(book[i].ch,book[j].ch)){
b[i][j]=1;
}
else
b[i][j]=0;
}
}
int maxx=0;
for(i=1;i<=10;++i){
for(j=0;j<n;++j)
s[i][j]=-1;
}
for(i=0;i<n;++i){
s[1][i]=book[i].v;
if(maxx<s[1][i])maxx=s[1][i];
}
for(i=2;i<=10;++i){
for(j=i-1;j<n;++j){
for(k=i-2;k<j;++k){
if(s[i-1][k]!=-1&&b[k][j]&&s[i-1][k]+book[j].v>s[i][j]){
s[i][j]=s[i-1][k]+book[j].v;
if(maxx<s[i][j])maxx=s[i][j];
}
}
}
}
big=10;
int c[11];
dfs(10,maxx,c,n);
printf("%d\n",big);
printf("%d\n",maxx);
for(i=1;i<=big;++i){
strcpy(name[i-1].c,book[c[i]].re);
}
sort(name,name+big,cmp);
for(i=1;i<=big;++i){
printf("%s\n",book[c[i]].re);
}
}
return 0;
}
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