University

include<iostream>

include <ext/pb_ds/assoc_container.hpp>

include <ext/pb_ds/tree_policy.hpp>

include<math.h>

include<algorithm>

include<stdio.h>

include<map>

include<vector>

include<set>

include<iomanip>

define F first

define S second

define P system("PAUSE");

define H return 0;

define pb push_back

define mod 1000000007

using namespace std;
using namespace __gnu_pbds;
bool sc(pair<int ,int> a, pair<int,int> b)
{
if(a.F==b.F)
return b.S<a.S; else return a.F\<b.F; } typedef tree\<int,null_type,less\<int>,rb_tree_tag,tree_order_statistics_node_update> ordered_set; int main() { ios_base::sync_with_stdio(false); cin.tie(NULL); cout.tie(NULL); int n; cin>>n;
map<pair\<int,int>,pair\<int, int>> res;
vector<pair\<int,int>> a(n),b;
for(int i=0;i<n;i++) cin>>a[i].F>>a[i].S;
b=a;
sort(a.begin(),a.end(),greater());

set<int> luu;
luu.insert(a[0].S);
int minn,maxx;
minn=a[0].S;
for(int i=1;i<n;i++)
{
    if(a[i].S>=minn)
    res[a[i]].F=1;
    else minn=a[i].S;

}
 for(int i=0;i<n;i++)
cout<<a[i].F<<' '<<a[i].S<<endl; 
sort(a.begin(),a.end(),sc);
maxx=a[0].S;
luu.clear();
luu.insert(a[0].F);

for(int i=1;i<n;i++)
{
    if(a[i].S<=maxx)
    res[a[i]].S=1;
    else maxx=a[i].S;
}
 for(int i=0;i<n-1;i++)
 cout<<res[b[i]].F<<' ';
   cout<<res[b[n-1]].F;
 cout<<endl;
 for(int i=0;i<n-1;i++)
 cout<<res[b[i]].S<<' ';
 cout<<res[b[n-1]].S;

}

Tú

deptrai

hi

include <bits/stdc++.h>

using namespace std;
int main ()
{
int n, m;
cin >> n >> m;
int a[n];
int sum = 0;
for (int i = 0; i < n; i++) {
cin >> a[i];
}
sort(a, a + n,greater<int>());
if (a[0] == 0) {
cout << "-1";
exit(0);
}
for (int i = 0; i < n; i++) {
if (i != 0) {
sum += a[i] - 1;
} else {
sum += a[i];
}
if (sum >= m) {
cout << i + 1;
exit(0);
}
}
cout << "-1";
return 0;
}