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| #include <iostream> using namespace std; bool aaaa(int a[][4],int x,int y,int num){ int i=0; int j=y-1; while(i<=x-1&&j>=0){ if(a[i][j]==num){ return true; }else if(a[i][j]>num){ j--; }else{ i++; } } return false; } int main(){ int a[4][4]={1,2,8,9, 2,4,9,12, 4,7,10,13, 6,8,11,15}; int num; while(cin>>num){ if(aaaa(a,4,4,num)){ cout<<"true"<<endl; }else{ cout<<"false"<<endl; } } return 0; }
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