Add to Favorites    Make Home Page 182 Online  

 Language Categories  
 Our Services  

Home » C++ Home » Mathematics Home » SUDOKU

A D V E R T I S E M E N T

Search Projects & Source Codes:

Title SUDOKU
Author Anil Sharma
Author Email anilsharmagzb2004 [at] yahoo.co.in
Description Ultimate sol. to world famous game SUDOKU
Category C++ » Mathematics
Hits 58375
Code Select and Copy the Code
/* SU DOKU */ #include <iostream.h> void main() { int k[9][9],K[9][9]; int i,j,i1,j1,i2,j2; int error,temp; int count=0; for(i=0;i<9;i++) for(j=0;j<9;j++) K[i][j]=0; for(i=0;i<9;i++) for(j=0;j<9;j++) { cin>>K[i][j]; k[i][j]=K[i][j]; } cout<<"O.K.? (Enter 0 if OK, 1 to update): "; cin>>error; if(error==0) goto matrixvalidation; matrixupdation: while(1) { cout<<"Enter Row, Col, Revised number:(0 to exit) "; cin>>i; if(i==0)break; cin>>j>>temp; if(i>0&&j>0&&temp>=0&&i<10&&j<10&&temp<10) { K[i-1][j-1]=temp; k[i-1][j-1]=temp; } else cout<<"Enter row/column 1 to 9 & number 0 to 9 only. "; } matrixvalidation: cout<<" Input matrix: "; for(i=0;i<9;i++) { for(j=0;j<9;j++) cout<<k[i][j]<<" "; cout<<" "; } for(i=0;i<9;i++) for(j=0;j<9;j++) if(k[i][j]<0||k[i][j]>9) { cout<<" "<<i+1<<" "<<j+1<<" "<<k[i][j]; cout<<" Input matrix error."; cout<<" Numbers should be 1 to 9 only. "; goto matrixupdation; } for(i=0;i<9;i++) for(j=0;j<9;j++) { if(k[i][j]==0)continue; error=0; for(i1=0;i1<9;i1++) if(i!=i1&&k[i][j]==k[i1][j]) { error=1; i2=i1; j2=j; } for(j1=0;j1<9;j1++) if(j!=j1&&k[i][j]==k[i][j1]) { error=1; i2=i; j2=j1; } for(i1=0;i1<9;i1++) for(j1=0;j1<9;j1++) if((i!=i1||j!=j1)&&i/3==i1/3&&j/3==j1/3&&k[i][j]==k[i1][j1]) { error=1; i2=i1; j2=j1; } if(error) { cout<<" "<<i+1<<" "<<j+1<<" "<<k[i][j]; cout<<" "<<i2+1<<" "<<j2+1<<" "<<k[i2][j2]; cout<<" Input matrix error."; cout<<" A number has been repeated in the same row, col or block. "; goto matrixupdation; } } /* Logic starts: */ for(i=0;i<9;i++) for(j=0;j<9;j++) { if(K[i][j]>0) goto chksol; for(k[i][j]++;k[i][j]<=9;k[i][j]++) { error=0; for(i1=0;i1<9;i1++) if(i!=i1&&k[i][j]==k[i1][j])error=1; for(j1=0;j1<9;j1++) if(j!=j1&&k[i][j]==k[i][j1])error=1; for(i1=0;i1<9;i1++) for(j1=0;j1<9;j1++) if((i!=i1||j!=j1)&&i/3==i1/3&&j/3==j1/3&&k[i][j]==k[i1][j1]) error=1; if(error==0)break; } if(k[i][j]>9) { k[i][j]=0; do { if(i==0&&j==0)goto nomoresol; if(j>0)j--;else{j=8;i--;} }while(K[i][j]>0); j--; } chksol: if(i==8&&j==8) { cout<<" Solution: "<<++count<<" "; for(i1=0;i1<9;i1++) { for(j1=0;j1<9;j1++) cout<<k[i1][j1]<<" "; cout<<" "; } if(count==50) { cout<<" Too many solutions. Not checking for more solutions. "; return; } while(K[i][j]>0) { if(i==0&&j==0)goto nomoresol; if(j>0)j--;else{j=8;i--;} } k[i][j]=0; do { if(i==0&&j==0)goto nomoresol; if(j>0)j--;else{j=8;i--;} }while(K[i][j]>0); j--; } } nomoresol: if(count>0) cout<<" No more solutions. "; else cout<<"No solution. "; }

Related Source Codes

Script Name Author
Moving ball screen saver karlmarx
The Classic Game of Snake & Ladder Lakshmi Narayana .A
Railway seat reservation question which comes in sapient VyomWorld
To calculate percentile Ravi Mathur
Send to folder ANIMESH SAHU
Analog clock and calendar Nazia & Rida
HIGH/LOW GAME MOLLY ARORA
Data structure (stack Implimentation) Swapnil B Adsure
Memory Game AnirudhSanyal
Easy Calc Anirudh Sanyal
GK Quiz Anirudh Sanyal
Hangman Game Manish Jain
Snakeman Manish Jain
Full month Calendar Nigi
Cursor shapes nigi

A D V E R T I S E M E N T




Google Groups Subscribe to SourceCodesWorld - Techies Talk
Email:


Free eBook - Interview Questions: Get over 1,000 Interview Questions in an eBook for free when you join JobsAssist. Just click on the button below to join JobsAssist and you will immediately receive the Free eBook with thousands of Interview Questions in an ebook when you join.

New! Click here to Add your Code!


ASP Home | C Home | C++ Home | COBOL Home | Java Home | Pascal Home
Source Codes Home Page

 Advertisements  

Google Search

Google

Source Codes World.com is a part of Vyom Network.

Vyom Network : Web Hosting | Dedicated Server | Free SMS, GRE, GMAT, MBA | Online Exams | Freshers Jobs | Software Downloads | Interview Questions | Jobs, Discussions | Placement Papers | Free eBooks | Free eBooks | Free Business Info | Interview Questions | Free Tutorials | Arabic, French, German | IAS Preparation | Jokes, Songs, Fun | Free Classifieds | Free Recipes | Free Downloads | Bangalore Info | Tech Solutions | Project Outsourcing, Web Hosting | GATE Preparation | MBA Preparation | SAP Info | Software Testing | Google Logo Maker | Freshers Jobs

Sitemap | Privacy Policy | Terms and Conditions
Copyright ©2003-2014 SourceCodesWorld.com, All Rights Reserved.
Page URL: http://www.sourcecodesworld.com/source/show.asp?ScriptID=1111


Download Yahoo Messenger | Placement Papers | Free SMS | C Interview Questions | C++ Interview Questions | Quick2Host Review