oj.uz

답안 #869978

# 제출 시각 아이디 문제 언어 결과 실행 시간 메모리
869978 2023-11-06T13:11:26 Z MercubytheFirst Baloni (COCI15_baloni) C++17
0 / 100
 68 ms 37152 KB 
/*


*/

#include<iostream>
#include<vector>
#include<iomanip>
#include<algorithm>
#include<map>
#include<set>
#include<climits>
#include<numeric>
#include<queue>
#include<unordered_map>
#include<string>
#include<climits>
#include<unordered_set>
#include<bitset>
#include<cstring>
#include<cmath>
#include<stack>
#include<tuple>
#include<complex>
#if 1
#define pb push_back
#define endl '\n'
#define fi first
#define se second
#define fio ios_base::sync_with_stdio(false);cin.tie(NULL);
#define CDIV(a,b) (((a)+(b)-(1))/(b))
using namespace std;
using ll = long long;
using ld = long double;
const ll inf = 1e9 + 5;
const ll mod = 998244353;
const ll N = 1e6 + 4;
const ld PI = acos((ld)-1);
#endif



void fileio(string s = "test"){
    #ifndef ONLINE_JUDGE
        freopen((s+string(".in")).c_str(),"r",stdin);
        freopen((s+string(".out")).c_str(),"w",stdout);
    #endif
}

ll bpow(ll a, ll p)
{
    if(a == 0 or a == 1)return a;
    ll ans = 1;
    while(p)
    {
        if(p&1)ans = ans * a % mod;
        a = a * a % mod;
        p >>= 1;
    }
    return ans;
}

ll add(ll a, ll b){
    if(a + b >= mod) 
        return a + b - mod;
    return a + b;
}

ll sub(ll a, ll b){
    if(a - b >= 0)
        return a - b;
    return a - b + mod;
}



ll mul(ll a, ll b){
    return (a%mod)*(b%mod)%mod;
}

ll digitSum(ll n){
    ll sum = 0;
    while(n){
        sum += n % 10;
        n /= 10;
    }
    return sum;
}

inline void solve(){
    ll n;
    cin >> n;
    vector<ll> v(n + 1);
    vector<vector<ll> >keep(n + 1);
    for(ll i = 1; i <= n; ++i){
        cin >> v[i];

    }
    for(ll i = n; i >= 1; --i){
        keep[v[i]].pb(i);
    }
    ll ans = 0;
    for(ll i = 1; i <= n; ++i){
        if(v[i] == -1)
            continue;
        ll cur = v[i];
        int lasti = i;
        ans++;
        while(cur >= 1 and !keep[cur].empty()){
            if(keep[cur].back() < lasti)
                break;
            lasti = keep[cur].back();
            v[keep[cur].back()] = -1;
            keep[cur].pop_back();
            cur--;
        }
    }
    cout << ans << endl;


}

signed main(){
    //fileio();
    fio;
    // int t = 0;cin >> t;while(t-->0)
        solve();

}


/*
2 9 9 3 1 1 3 8 8 8
*/

Compilation message

baloni.cpp: In function 'void fileio(std::string)':
baloni.cpp:45:16: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)' declared with attribute 'warn_unused_result' [-Wunused-result]
   45 |         freopen((s+string(".in")).c_str(),"r",stdin);
      |         ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
baloni.cpp:46:16: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)' declared with attribute 'warn_unused_result' [-Wunused-result]
   46 |         freopen((s+string(".out")).c_str(),"w",stdout);
      |         ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

Subtask #1
0 / 100.0

# 결과 실행 시간 메모리 Grader output
1 Incorrect 0 ms 344 KB Output isn't correct
2 Incorrect 1 ms 348 KB Output isn't correct
3 Incorrect 1 ms 604 KB Output isn't correct
4 Incorrect 1 ms 604 KB Output isn't correct
5 Incorrect 62 ms 34388 KB Output isn't correct
6 Incorrect 68 ms 37152 KB Output isn't correct
7 Incorrect 57 ms 32656 KB Output isn't correct
8 Incorrect 58 ms 30224 KB Output isn't correct
9 Incorrect 57 ms 34576 KB Output isn't correct
10 Incorrect 64 ms 33724 KB Output isn't correct