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2 years ago
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#include<iostream> using namespace std; int fr1[21]={0}, fr2[21]={0}; int main() { int v[50][50], n, m, i, j, ok=0; cin>>m>>n; for(i=1;i<=m;i++) { for(j=1;j<=n;j++) cin>>v[i][j]; if(j==1) fr1[v[i][j]]++; else if(j==n) fr2[v[i][j]]++; } for(i=1;i<=20;i++) { if(fr1[i]==1 && fr2[i]==1) { cout<<i<<" "; ok=1;} } if(ok==0) cout<<"NU EXISTA"; return 0; }