Hi all,

I am writing a program in which there is a part that computes all the possible values for two vectors of string patterns, one like 1XX78X9X32X (11 digit) the other like 26XX (4 digit), using digits from 0 to 9, and that passes all these possible strings to another two vectors.

So I wrote 16 nested for loops, the outer one for vector, the 15 inner ones for every digit of the patterns (11+4).

But for some reason the loop is infinite and it never terminates. I could not discover why.

I would really appreciate it if you have any ideas and can help me, it is really urgent.

Thanks in advance..

```
for(int x=0; x<namevect.size(); x++){
for(int a=0;a<=9;a++){
if(idpvect[x][0]=='X'){
idpvect[x][0]=intToChar(a);
}
for(int b=0;b<=9;b++){
if(idpvect[x][1]=='X'){
idpvect[x][1]=intToChar(b);
}
for(int c=0;c<=9;c++){
if(idpvect[x][2]=='X'){
idpvect[x][2]=intToChar(c);
}
for(int d=0;d<=9;d++){
if(idpvect[x][3]=='X'){
idpvect[x][3]=intToChar(d);
}
for(int e=0;e<=9;e++){
if(idpvect[x][4]=='X'){
idpvect[x][4]=intToChar(e);
}
for(int f=0;f<=9;f++){
if(idpvect[x][5]=='X'){
idpvect[x][5]=intToChar(f);
}
for(int g=0;g<=9;g++){
if(idpvect[x][6]=='X'){
idpvect[x][6]=intToChar(g);
}
for(int h=0;h<=9;h++){
if(idpvect[x][7]=='X'){
idpvect[x][7]=intToChar(h);
}
for(int i=0;i<=9;i++){
if(idpvect[x][8]=='X'){
idpvect[x][8]=intToChar(i);
}
for(int j=0;j<=9;j++){
if(idpvect[x][9]=='X'){
idpvect[x][9]=intToChar(j);
}
for(int k=0;k<=9;k++){
if(idpvect[x][10]=='X'){
idpvect[x][10]=intToChar(k);
}
for(int l=0;l<=9;l++){
if(idpvect[x][10]=='X'){
idpvect[x][10]=intToChar(l);
}
for(int m=0;m<=9;m++){
if(idpvect[x][10]=='X'){
idpvect[x][10]=intToChar(m);
}
for(int n=0;n<=9;n++){
if(bypvect[x][0]=='X'){
bypvect[x][0]=intToChar(n);
}
for(int o=0;o<=9;o++){
if(bypvect[x][1]=='X'){
bypvect[x][1]=intToChar(o);
}
}}}}}}}}}}}}}}}}
```