#include <bits/stdc++.h> #define int long long #define mp make_pair #define pb push_back #define ld long double #define pii pair<int,int> #define sz(x) (int)x.size() #define piii pair<pii,pii> #define precise cout<<fixed<<setprecision(10) #define st first #define nd second #define ins insert #define vi vector<int> #define BOOST ios_base::sync_with_stdio(false);cin.tie(0);cout.tie(0) using namespace std; map<int,int>cnt; int32_t main(){ BOOST; int n,k; cin>>n>>k; int sum=0; for (int i=1;i<=n;i++){ int a; cin>>a; cnt[-a]++; } int ans=0; for (auto it:cnt){ ans+=it.nd; if (ans>=k)break; } cout<<ans; return 0; }
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 | #include <bits/stdc++.h> #define int long long #define mp make_pair #define pb push_back #define ld long double #define pii pair<int,int> #define sz(x) (int)x.size() #define piii pair<pii,pii> #define precise cout<<fixed<<setprecision(10) #define st first #define nd second #define ins insert #define vi vector<int> #define BOOST ios_base::sync_with_stdio(false);cin.tie(0);cout.tie(0) using namespace std; map<int,int>cnt; int32_t main(){ BOOST; int n,k; cin>>n>>k; int sum=0; for (int i=1;i<=n;i++){ int a; cin>>a; cnt[-a]++; } int ans=0; for (auto it:cnt){ ans+=it.nd; if (ans>=k)break; } cout<<ans; return 0; } |