Tema 15.05

#include <iostream>

using namespace std;

int main()
{
    int  pb; cout<<"Introdu nr problemei:"; cin>>pb;
    switch (pb){
        case 1:{//pb 5, V.1
                int m, n;
                cout<<"m="; cin>>m;
                cout<<"n="; cin>>n;
                int v[n][m];
                for (int i=1; i<=n; i++){
                    for (int j=1; j<=m; j++){
                        (i>j)?(v[i][j]=j):(v[i][j]=i);
                    }
                }
                for (int i=1; i<=n; i++){
                    for (int j=1; j<=m; j++)
                        cout<<v[i][j]<<" ";
                    cout<<endl;
                }
                break;
        }
        case 2:{//pb 5, V 3
                int n ;
                cout<<"n="; cin>>n;
                int v[n][n];
                int x=n;
                for (int i= 0; i<n; i++, x--){
                        for(int j=0; j<n; j++){
                            v[j][i]=x;
                        }
                   }
                for (int i=0; i<n; i++){
                    v[i][i]=0;
                }
                for (int i=0; i<n; i++){
                    for (int j=0; j<n; j++)
                        cout<<v[i][j]<<" ";
                    cout<<endl;
                }
                break;
        }
        case 3:{//pb 5, V 4
            int n; cout<<"n="; cin>>n;
            int v[n][n];
            int x=n;
            for (int i=0; i<n; i++, x--){
                for (int j=0; j<n; j++){
                    v[i][j]=x;
                }
            }
            for (int i=0; i<n; i++){
                v[i][n-i-1]=0;
            }
             for (int i=0; i<n; i++){
                    for (int j=0; j<n; j++)
                        cout<<v[i][j]<<" ";
                    cout<<endl;
             }
            break;
        }
        case 4:{//pb 5, V5
                int n, m;
                cout<<"n="; cin>>n;
                cout<<"m="; cin>>m;
                int v[n][m];
                for (int i=1; i<=n; i++){
                    for (int j=1; j<=m; j++){
                        (i<j)?(v[i][j]=j):(v[i][j]=i);
                    }
                }
                 for (int i=1; i<=n; i++){
                        for (int j=1; j<=m; j++)
                            cout<<v[i][j]<<" ";
                        cout<<endl;
                 }
                break;
        }
    }
    return 0;
}