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| // Integers as a Service | |
| // Solution by Jacob Plachta | |
| using namespace std; | |
| template<typename T> T Abs(T x) { return(x<0 ? -x : x); } | |
| template<typename T> T Sqr(T x) { return(x*x); } | |
| string plural(string s) { return(Sz(s) && s[Sz(s)-1]=='x' ? s+"en" : s+"s"); } | |
| const int INF = (int)1e9; | |
| const LD EPS = 1e-12; | |
| const LD PI = acos(-1.0); | |
| bool Read(int &x) | |
| { | |
| char c,r=0,n=0; | |
| x=0; | |
| for(;;) | |
| { | |
| c=GETCHAR(); | |
| if ((c<0) && (!r)) | |
| return(0); | |
| if ((c=='-') && (!r)) | |
| n=1; | |
| else | |
| if ((c>='0') && (c<='9')) | |
| x=x*10+c-'0',r=1; | |
| else | |
| if (r) | |
| break; | |
| } | |
| if (n) | |
| x=-x; | |
| return(1); | |
| } | |
| int N; | |
| char O[LIM]; | |
| int V[LIM],R[LIM]; | |
| map<int,int> minE,maxE,Fv,Fr; | |
| map<int,int>::iterator I; | |
| map<int,int> Fact(int v) | |
| { | |
| map<int,int> F; | |
| int p,e; | |
| for (p=2; p*p<=v; p++) | |
| { | |
| e=0; | |
| while (v%p==0) | |
| v/=p,e++; | |
| if (e) | |
| F[p]=e; | |
| } | |
| if (v>1) | |
| F[v]=1; | |
| return(F); | |
| } | |
| void SetMin(int p,int e) | |
| { | |
| Max(minE[p],e); | |
| } | |
| void SetMax(int p,int e) | |
| { | |
| if (maxE.count(p)) | |
| Min(maxE[p],e); | |
| else | |
| maxE[p]=e; | |
| } | |
| int main() | |
| { | |
| if (DEBUG) | |
| freopen("in.txt","r",stdin); | |
| // vars | |
| int T,t; | |
| int i,p,e,ev,er; | |
| LL ans; | |
| bool hasAP; | |
| set<int> AP; | |
| set<int>::iterator J,K; | |
| // testcase loop | |
| Read(T); | |
| Fox1(t,T) | |
| { | |
| // init | |
| printf("Case #%d: ",t); | |
| minE.clear(),maxE.clear(); | |
| hasAP=0; | |
| // input | |
| Read(N); | |
| Fox(i,N) | |
| scanf("%c%d%d\n",&O[i],&V[i],&R[i]); | |
| // assemble prime exponent requirements based on original requirements | |
| Fox(i,N) | |
| { | |
| Fv=Fact(V[i]),Fr=Fact(R[i]); | |
| if (O[i]=='G') | |
| { | |
| if (V[i]%R[i]) | |
| goto Imp; | |
| Foxen(I,Fv) | |
| { | |
| p=I->x,ev=I->y; | |
| er=Fr[p]; | |
| SetMin(p,er); | |
| if (ev>er) | |
| SetMax(p,er); | |
| } | |
| } | |
| else | |
| { | |
| if (R[i]%V[i]) | |
| goto Imp; | |
| Foxen(I,Fr) | |
| { | |
| p=I->x,er=I->y; | |
| ev=Fv[p]; | |
| SetMax(p,er); | |
| if (ev<er) | |
| SetMin(p,er); | |
| } | |
| if (!hasAP) | |
| { | |
| hasAP=1,AP.clear(); | |
| Foxen(I,Fr) | |
| AP.insert(I->x); | |
| } | |
| else | |
| for (J=AP.begin(); J!=AP.end();) | |
| { | |
| K=J,J++; | |
| if (!Fr.count(*K)) | |
| AP.erase(K); | |
| } | |
| } | |
| } | |
| // construct min. valid value of X | |
| ans=1; | |
| Foxen(I,minE) | |
| { | |
| p=I->x,e=I->y; | |
| if ((e) && (hasAP) && (!AP.count(p))) | |
| goto Imp; | |
| if ((maxE.count(p)) && (maxE[p]<e)) | |
| goto Imp; | |
| while (e--) | |
| { | |
| ans*=p; | |
| if (ans>INF) | |
| goto Imp; | |
| } | |
| } | |
| // output | |
| printf("%lld\n",ans); | |
| continue; | |
| Imp:; | |
| printf("-1\n"); | |
| } | |
| return(0); | |
| } |