제출 #472021

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
472021		hjc4vr	Baloni (COCI15_baloni)	C++17	0 / 100	183 ms	23300 KiB

baloni

#include <bits/stdc++.h>
#define int long long
#define pp pair <bool,int>
#define ppi pair <int,int>
#define tp tuple <int,int,int,bool>
#define c1(x) cin >> x
#define c2(x,y) cin >> x >> y
#define c3(x,y,z) cin >> x >> y >> z
#define c4(x,y,z,f) cin>> x >> y >> z >> f
#define mp(a,b) make_pair(a,b)

using namespace std;
void solve(){
    int n;cin>>n;
    unordered_map<int,bool> mp;
    for (int i=0;i<n;++i){
        int a;cin>>a;
        mp[a+i] = true;
    }
    cout << mp.size();
}


int32_t main(){
    ios_base::sync_with_stdio(0);cin.tie(0);
    solve();
}
//  1 6 9 3 4 10 3 9

• Subtask 1: 0 / 100