life, C (clang) - rextester

life

#include <iostream>
#include <fstream>
#include <cstdlib>
#include <cmath>
#include <ctime>
#include <cstdio>
#include <string>
#include <iomanip>
#include <cstring>
#include <cctype>
using namespace std;

int main(){
    const int n=50;
    char meno=45;
    char piu=43;
    int vive=0;
    char campo[n][n]; //indecisione fra char, int , bool
    for(int i=0;i<n;i++){
        for(int j=0;j<n;j++){
            campo[i][j]=meno;
        }
    }
    for(int i=0;i<n;i++){
        for(int j=0;j<n;j++){
            cout<<campo[i][j]<<" ";
        }
        cout<<endl;
    }
    for(int i=0;i<n;i++){
        for(int j=0;j<n;j++){
            viva=0;
            if(campo[i][j]==meno){
                for(int k=i-1;k<=i+1;k++){
                    for(int z=j-1;z<=j+1;z++){
                        if(campo[k][z]==piu)
                            viva++;
                    }
                }
                if(viva==3)
                    campo[i][j]=piu;
            }
            else{
                for(int k=i-1;k<=i+1;k++){
                    for(int z=j-1;z<=j+1;z++){
                        if(campo[k][z]==piu)
                            viva++;
                    }
                }
                viva--;
                if(viva<2 || viva>3)
                    campo[i][j]=meno;
            }
        }
    }
        }
    }


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