This question is a bit strange. The array was initialized perfectly, but it resulted in a runtime error (RE).
But isn't the limit only 20 characters? Or did I misunderstand the question...
//============================================================================
// Name : Anagram checker.cpp
// Date : 2013/3/28 上午10:46:49
// Author : GCA
//============================================================================
#include <iostream>
#include <cstdio>
#include <cstring>
#include <algorithm>
#include <cmath>
#include <climits>
#include <vector>
#include <set>
#include <map>
#include <queue>
#include <cctype>
#include <utility>
#include <sstream>
using namespace std;
#ifdef ONLINE\_JUDGE
#define ll "%lld"
#else
#define ll "%I64d"
#endif
typedef unsigned int uint;
typedef long long int Int;
#define Set(a,s) memset(a,s,sizeof(a))
#define Write(w) freopen(w,"w",stdout)
#define Read(r) freopen(r,"r",stdin)
#define Pln() printf("\\n")
#define I\_de(x,n)for(int i=0;i<n;i++)printf("%d ",x\[i\]);Pln()
#define De(x)printf(#x"%d\\n",x)
#define For(i,x)for(int i=0;i<x;i++)
#define CON(x,y) x##y
#define Pmz(dp,nx,ny)for(int hty=0;hty<ny;hty++){for(int htx=0;htx<nx;htx++){\\
printf("%d ",dp\[htx\]\[hty\]);}Pln();}
#define M 10011
#define PII pair<int,int\>
#define PB push\_back
#define oo INT\_MAX
#define Set\_oo 0x3f
#define Is\_debug true
#define debug(...) if(Is\_debug)printf("DEBUG: "),printf(\_\_VA\_ARGS\_\_)
#define FOR(it,c) for(\_\_typeof((c).begin()) it=(c).begin();it!=(c).end();it++)
#define eps 1e-6
bool xdy(double x,double y){return x>y+eps;}
bool xddy(double x,double y){return x>y-eps;}
bool xcy(double x,double y){return x<y-eps;}
bool xcdy(double x,double y){return x<y+eps;}
int min3(int x,int y,int z){
int tmp=min(x,y);
return min(tmp,z);
}
int max3(int x,int y,int z){
int tmp=max(x,y);
return max(tmp,z);
}
struct word{
int alpha\[130\];
char dir\[101\];
}wtmp,phrase;
vector<word> dire;
set<string> set1,set2;
word ans\[2005\];
void dfs(int depth,int now){
int size=dire.size();
bool judge=true;
for(int i=0;i<26;i++){
if(phrase.alpha\[i\]!=0){
judge=false;
break;
}
}
if(judge){
bool rep=true;
for(int i=0;i<depth;i++){
string str(ans\[i\].dir);
if(!set1.count(str)){
rep=false;
}
}
if(rep)return;
printf("%s =",phrase.dir);
for(int i=0;i<depth;i++){
printf(" %s",ans\[i\].dir);
}Pln();
return;
}
if(depth==0){
for(int k=0;k<size;k++){
word wmp=dire\[k\];
bool bigger=true;
for(int i=0;i<26;i++){
if(phrase.alpha\[i\]<wmp.alpha\[i\]){
bigger=false;
break;
}
}
if(!bigger)continue;
for(int i=0;i<26;i++){
phrase.alpha\[i\]-=wmp.alpha\[i\];
}
ans\[depth\]=wmp;
dfs(depth+1,k);
for(int i=0;i<26;i++){
phrase.alpha\[i\]+=wmp.alpha\[i\];
}
}
}else{
for(int k=now;k<size;k++){
word wmp=dire\[k\];
bool bigger=true;
for(int i=0;i<26;i++){
if(phrase.alpha\[i\]<wmp.alpha\[i\]){
bigger=false;
break;
}
}
if(!bigger)continue;
for(int i=0;i<26;i++){
phrase.alpha\[i\]-=wmp.alpha\[i\];
}
ans\[depth\]=wmp;
dfs(depth+1,k);
for(int i=0;i<26;i++){
phrase.alpha\[i\]+=wmp.alpha\[i\];
}
}
}
}
int main() {
// ios\_base::sync\_with\_stdio(0);
set2.clear();
while(gets(wtmp.dir)){
if(wtmp.dir\[0\]=='#')break;
if(set2.count(wtmp.dir))continue;
set2.insert(wtmp.dir);
int len=strlen(wtmp.dir);
Set(wtmp.alpha,0);
for(int i=0;i<len;i++){
wtmp.alpha\[wtmp.dir\[i\]-'A'\]++;
}
dire.PB(wtmp);
}
while(gets(phrase.dir)){
stringstream ss;
ss<<phrase.dir;
set1.clear();
string inn;
while(ss>>inn){
set1.insert(inn);
}
if(phrase.dir\[0\]=='#')break;
int len=strlen(phrase.dir);
Set(phrase.alpha,0);
for(int i=0;i<len;i++){
if(phrase.dir\[i\]!=' ')
phrase.alpha\[phrase.dir\[i\]-'A'\]++;
}
dfs(0,0);
}
}