답안 #404309

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
404309	2021-05-14T07:20:21 Z	Andyvanh1	Baloni (COCI15_baloni)	C++14	60 / 100	2000 ms	7212 KB

baloni

#include <iostream>
#include <vector>
#include <algorithm>
#include <set>
#include <map>
#include <fstream>
#include <math.h>
#include <iomanip>


using namespace std;

#define vt vector
#define INF 0x3f3f3f3f
#define pb push_back
#define FORR1(n) for(int i = 0; i < n; i++)
#define FORR2(i,n) for(int i = 0; i < n; i++)
#define all(u) u.begin(),u.end()

typedef long long ll;
typedef vt<int> vi;
typedef pair<int,int> pii;

struct CTD{
    int size;
    vi par;
    vt<set<int>> tree;
    vi sub;
    void init(vt<set<int>> &adj){
        size = adj.size();
        par.resize(size);
        tree=adj;
        sub.resize(size);
        par[0] = -1;
        build(0,-1);
    }
    void build(int u, int p) {
        int n = dfs(u, p); // find the size of each subtree
        int centroid = find_centroid(u, p, n); // find the centroid
        par[centroid] = p;

        // for each tree resulting from the removal of the centroid
        set<int> ref = tree[centroid];
        for (auto v : ref) {
            tree[centroid].erase(v); // remove the edge to disconnect
            tree[v].erase(centroid); // the component from the tree
            build(v, centroid);
        }
    }



    int dfs(int u, int p) {
        sub[u] = 1;

        for (auto v : tree[u])
            if (v != p) sub[u] += dfs(v, u);

        return sub[u];
    }

    int find_centroid(int node, int p, int n){
        for(auto& e: tree[node]){
            if(e!=p&&sub[e]>n/2){
                return find_centroid(e,node,n);
            }
        }
        return node;
    }


};

struct fwtree{
    int size;
    vi arr;
    void init(int n){
        size = n;
        arr.resize(n+2);
        for(int i = 0; i < n+2; i++){
            arr[i] = 0;
        }
    }

    void update(int i, int x){
        for(; i <= size; i+=i&-i){
            arr[i]+=x;
        }
    }

    int get(int i){
        int ans = 0;
        for(; i > 0; i-=i&-i){
            ans+=arr[i];
        }
        return ans;
    }

    int get(int l, int r){
        return get(r)-get(l-1);
    }

};

struct point{
    long double x, y;

};

bool operator<(point p1, point p2){
   return p2.x>p1.x||(p2.x==p1.x&&p2.y>p1.y);
}

struct rect{
    int left, right, top, bottom;
};

int grid[1002][1002];
int high[1002][1002];

void solve(){
    int n;
    cin>>n;
    vi arr(n);
    FORR1(n){
        cin>>arr[i];
    }
    int ans = 0;
    for(int i = 0; i < n; i++){
        if(arr[i]==-1)continue;
        int curflight = arr[i]-1;
        arr[i] = -1;
        for(int j = i+1; j < n; j++){
            if(arr[j] == curflight){
                curflight--;
                arr[j] = -1;
            }
        }
        ans++;
    }
    cout<<ans<<'\n';
}

int main() {
    solve();
    return 0;
}

Subtask #1

60.0 / 100.0

#	결과	실행 시간	메모리	Grader output
1	Correct	2 ms	204 KB	Output is correct
2	Correct	3 ms	300 KB	Output is correct
3	Correct	6 ms	320 KB	Output is correct
4	Correct	8 ms	348 KB	Output is correct
5	Correct	1190 ms	7100 KB	Output is correct
6	Execution timed out	2081 ms	7212 KB	Time limit exceeded
7	Execution timed out	2089 ms	5956 KB	Time limit exceeded
8	Execution timed out	2078 ms	5928 KB	Time limit exceeded
9	Correct	1650 ms	6492 KB	Output is correct
10	Execution timed out	2033 ms	6456 KB	Time limit exceeded