1. Clase#pragma onceref class OPERA{public:int login(char [],
char [], int,int,int );void invertir(char [], int );int
cOriginal(char [],char [], int );int tamMatriz(int);void
rutaDeGrabacion(char [50][50],char [],int,int);int
rutaDeLectura(char[50][50],char [],int);
OPERA(void){}};int OPERA::login(char cad[], char aux[], int
n,int i,int s){//for(int i=n-1; i>=0;
i--)if(i>=0){if(i+1Clear(); }private: System::Void
BtnRegistrar_Click(System::Object^ sender, System::EventArgs^ e) {
ENCRIPTAR EC; OPERA OP;
CbUsuarios->Items->Add(TxtNombre->Text);
tam=TxtNombre->Text->Length; if(tam==0) this->Close();
String^ cad=TxtNombre->Text; for(int i=0; iSubstring(i,1));
cadMinus[i]=tolower(Convert::ToChar(cad->Substring(i,1))); }
//Concatenacion para Login String^ cadena="0";
s=OP.login(cadOriginal, auxLog, tam,tam-1,0); OP.invertir(auxLog,
s); String^ LoginOp; for(int i=0; iLength; for(int i=0;
iSubstring(i,1)); } vec[cont].tamL=t;
t=contOri->Length; for(int i=0; iSubstring(i,1)); }
vec[cont].tamCO=t;
t=contEncr->Length; for(int i=0; iSubstring(i,1)); }
vec[cont].tamCE=t;
cont++;}private: System::Void
CbUsuarios_SelectedIndexChanged(System::Object^ sender,
System::EventArgs^ e) { }private: System::Void
BtnAcceder_Click(System::Object^ sender, System::EventArgs^ e) {
if((CbUsuarios->SelectedIndex) >(-1)){
indice=CbUsuarios->SelectedIndex; String^ aux; for(int
i=0;iText=aux; } }private: System::Void
BtnAceptar_Click(System::Object^ sender, System::EventArgs^ e) {
OPERA OP; int t,a=0; if(intentosText->Length; String^
Contra=TxtContra->Text; for(int i=0; iSubstring(i,1));
} //Encriptacion n=OP.tamMatriz(t);
OP.rutaDeGrabacion(matriz,contra, n, t); int
tamEncriptado=OP.rutaDeLectura(matriz, contraEncr, n); for(int
i=0;iClear();TxtContra->Focus();intentos++; } } else {
MessageBox::Show("Seleccione su usuario nuevamente");
TxtLogin->Clear(); TxtContra->Clear(); intentos=0; }}
private: System::Void Form1_Load(System::Object^ sender,
System::EventArgs^ e) { TxtNombre->Focus(); }
