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Cod sursa(job #134030)
#include<stdio.h>
#include<string.h>
long a,b,n,m,ok,cur;
char v[1111],c;
FILE *f1,*f2;
void scr(long poz){
long i;
for(i=poz;i<m;v[i]=v[i+1],i++);
v[m]=NULL;
m--;
}
void ver(){
long j;
ok=0;
for(j=1;j<m;j++){
if(v[j]=='2'&&v[j+1]=='B'){
ok=1;
v[j]='B';
scr(j+1);
}
if(j<m-3&&v[j]=='1'&&(v[j+1]=='A'||v[j+1]=='1'||v[j+1]=='2'||v[j+1]=='3')&&v[j+2]=='3'&&(v[j+3]=='A'||v[j+3]=='1'||v[j+3]=='2'||v[j+3]=='3')&&(v[j+4]=='C'||v[j+4]=='2')){
ok=1;
v[j]='B';
scr(j+1);
scr(j+1);
scr(j+1);
scr(j+1);
}
if(j<m-1&&v[j]=='3'&&v[j+1]=='B'&&(v[j+2]=='C'||v[j+2]=='2')){
ok=1;
v[j]='C';
scr(j+1);
scr(j+1);
}
if(j<m-1&&v[j]=='1'&&v[j+1]=='2'&&(v[j+1]=='A'||v[j+1]=='1'||v[j+1]=='2'||v[j+1]=='3')){
ok=1;
v[j]='C';
scr(j+1);
scr(j+1);
}
}
}
int main(){
long i,j;
f1=fopen("perle.in","r");
f2=fopen("perle.out","w");
fscanf(f1,"%ld",&n);
for(i=1;i<=n;i++){
fscanf(f1,"%ld",&m);
for(j=1;j<=m;fscanf(f1,"%c%c",&c,&v[j]),j++);
ok=1;
while(ok){
ver();
}
if(m==1){
fprintf(f2,"1\n");
}
else{
fprintf(f2,"0\n");
}
}
return 0;
}