Sudoku Detectors: Imperial Engineering C + + jobs

#include <fstream>#include<vector>#include<iostream>#include<string>using namespacestd;BOOLCheck_sudoku (Constvector<int>&input);intCoordtoidx (intRowintcol);voidExtract_row (Constvector<int>& input,intRow, vector<int>&output);voidExtract_col (Constvector<int>& input,intCol, vector<int>&output);voidExtract_subsquare (Constvector<int>& input,intRowintCol, vector<int>&output);BOOLOnceintNumConstvector<int>&input);intMain () {Ifstream infile; cout<<"Please input a input file name"<<Endl; stringInfilename; CIN>>Infilename;    Infile.open (Infilename); if(!Infile.is_open ()) {cout<<"could not open input file"<<Endl; System ("Pause");    Exit (Exit_failure); } Vector<int>input; intNumber ;  while(infile>>Number )    {input.push_back (number);    } infile.close (); BOOLisok=Check_sudoku (input); if(IsOK) {cout<<"valid"<<Endl; }    Else{cout<<"Invalid"<<Endl; } System ("Pause"); return 0;}BOOLCheck_sudoku (Constvector<int>&input) {     for(intI=0; i<9; i++) {vector<int>rownumbers;        Extract_row (input,i,rownumbers);  for(intm=1;m<Ten; m++)        {            BOOLonceflag=once (m,rownumbers); if(!Onceflag) {                return false; }        }    }     for(intj=0; j<9; J + +) {vector<int>colnumbers;        Extract_col (input,j,colnumbers);  for(intm=1;m<Ten; m++)        {            BOOLonceflag=once (m,colnumbers); if(!Onceflag) {                return false; }        }    }     for(intp=0; p<9; p=p+3)         for(intq=0; q<9; q=q+3) {vector<int>subsquarenumbers;        Extract_subsquare (input,p,q,subsquarenumbers);  for(intm=1;m<Ten; m++)        {            BOOLonceflag=once (m,subsquarenumbers); if(!Onceflag) {                return false; }        }    }    return true;}intCoordtoidx (intRowintCol) {    returnrow*9+Col;}voidExtract_row (Constvector<int>& input,intRow, vector<int>&output) {     for(intC=0; c<9; C + +)    {        intidx=Coordtoidx (ROW,C);    Output.push_back (input.at (IDX)); }}voidExtract_col (Constvector<int>& input,intCol, vector<int>&output) {     for(intR=0; r<9; r++)    {        intidx=Coordtoidx (R,col);    Output.push_back (input.at (IDX)); }}voidExtract_subsquare (Constvector<int>& input,intRowintCol, vector<int>&output) {     for(intR=row; r<row+3; r++)         for(intC=col; c<col+3; C + +)    {        intidx=Coordtoidx (R,C);    Output.push_back (input.at (IDX)); }}BOOLOnceintNumConstvector<int>&input) {    intCount=0;  for(unsignedintI=0; I<input.size (); i++)    {        if(input.at (i) = =num) {Count++; }    }    returncount==1?true:false;}

Sudoku Detectors: Imperial Engineering C + + jobs