随机产生数独初始值

#include <iostream>
#include <vector>
#include <stack>
#include <queue>
#include <algorithm>
#include <algorithm>
using namespace std;



void print(vector<vector<int> >d){

    for(int i=0;i<d.size();i++){
        for(int j=0;j<d[i].size();j++){
            cout<<d[i][j]<<" ";
        }
        cout<<endl;
    }

}

void generateNum(vector<vector<int> >&d,int sum){
    srand( (unsigned)time( NULL ) );

    int flag=false;
    while(sum){

        int v = rand()%9+1;
        int m = rand()%9;
        int n = rand()%9;
        flag=false;
        if(d[m][n]==-1){


                for(int j=0;j<d[0].size();j++){
                    if(d[m][j] == v){
                        cout<<"-----"<<m<<j<<"--"<<d[m][j]<<endl;
                        flag=true;
                        break;

                    }

                }
                for(int i=0;i<d.size();i++){
                    if(d[i][n] == v){
                        flag=true;
                        break;
                    }

                }
            if(flag)
                continue;
            d[m][n]=v;    
            sum--;

        }

    }
}


int main(){

    vector<vector<int> >d(9,vector<int>(9,-1));

    print(d);


generateNum(d,50);
print(d);






}