oj.uz

답안 #275721

# 제출 시각 아이디 문제 언어 결과 실행 시간 메모리
275721 2020-08-20T07:19:02 Z 반딧불(#5115) Happiness (Balkan15_HAPPINESS) C++17
60 / 100
 2000 ms 264052 KB 
#include <unordered_set>
#include <climits>
#include <vector>
//#pragma GCC optimize("O3")
//#pragma GCC optimize("Ofast")
//#pragma GCC optimize("unroll-loops")
#include "happiness.h"

using namespace std;

typedef long long ll;

unordered_set<ll> st;
struct Node{
    ll s, e;
    ll sum = 0;
    int l=0, r=0;

    Node(){}
    Node(ll s, ll e): s(s), e(e){}
};
vector<Node> vec;

inline ll minSum(int i, ll idx){ /// returning sum
    ll s = vec[i].s, e = vec[i].e;
    int l = vec[i].l, r = vec[i].r;
    if(idx <= s) return 0;
    if(e < idx) return vec[i].sum;
    ll ret = 0;
    if(l && vec[l].sum) ret += minSum(l, idx);
    if(r && vec[r].sum) ret += minSum(r, idx);
    return ret;
}

inline ll minMax(int i, ll idx){ /// returning value
    ll s = vec[i].s, e = vec[i].e;
    int l = vec[i].l, r = vec[i].r;
    if(idx <= s) return 0;
    if(s==e) return s;
    ll m = (s+e)>>1;
    if(idx <= m+1){
        if(l && vec[l].sum) return minMax(l, idx);
        return 0;
    }
    if(r && vec[r].sum){
        ll tmp = minMax(r, idx);
        if(tmp) return tmp;
    }
    if(l && vec[l].sum){
        ll tmp = minMax(l, idx);
        if(tmp) return tmp;
    }
    return 0;
}

inline ll maxMin(int i, ll idx){ /// returning value
    ll s = vec[i].s, e = vec[i].e;
    int l = vec[i].l, r = vec[i].r;
    if(e <= idx) return LLONG_MAX;
    if(s==e) return s;
    ll m = (s+e)>>1;
    if(m <= idx){
        if(r && vec[r].sum) return maxMin(r, idx);
        return LLONG_MAX;
    }
    if(l && vec[l].sum){
        ll tmp = maxMin(l, idx);
        if(tmp != LLONG_MAX) return tmp;
    }
    if(r && vec[r].sum){
        ll tmp = maxMin(r, idx);
        if(tmp != LLONG_MAX) return tmp;
    }
    return LLONG_MAX;
}

void addValue(int i, ll idx, ll val){
    ll s = vec[i].s, e = vec[i].e;
    int l = vec[i].l, r = vec[i].r;
    if(s==e){
        vec[i].sum += val;

        ll lv = minMax(0, idx);
        ll rv = maxMin(0, idx);

        if(vec[i].sum){ /// adding
            if(lv*2 < idx) st.insert(idx);
            else st.erase(idx);
            if(rv != LLONG_MAX){
                if(idx*2 < rv) st.insert(rv);
                else st.erase(rv);
            }
        }
        else{ /// deleted
            st.erase(idx);
            if(rv != LLONG_MAX){
                if(lv*2 < rv) st.insert(rv);
                else st.erase(rv);
            }
        }
        return;
    }
    ll m = (s+e)>>1;
    if(idx <= m){
        if(!l) vec[i].l = l = (int)vec.size(), vec.push_back(Node(s, m));
        addValue(l, idx, val);
    }
    else{
        if(!r) vec[i].r = r = (int)vec.size(), vec.push_back(Node(m+1, e));
        addValue(r, idx, val);
    }
    vec[i].sum = (!l ? 0 : vec[l].sum) + (!r ? 0 : vec[r].sum);
}

int n, cnt;

bool isAble(){
    for(auto &x: st){
//        printf("strange(%lld) ", x);
        if(minSum(0, x) + 1 < x) return false;
    }
    return true;
}

bool init(int coinsCount, ll maxCoinSize, ll coins[]) {
    n = coinsCount;
    vec.push_back(Node(1, maxCoinSize));

    for(int i=0; i<n; i++){
        addValue(0, coins[i], coins[i]);
    }
    return isAble();
}

bool is_happy(int event, int coinsCount, ll coins[]) {
    n += coinsCount * event;
    for(int i=0; i<coinsCount; i++) addValue(0, coins[i], coins[i] * event);
    return isAble();
}

Compilation message

grader.cpp: In function 'int main()':
grader.cpp:16:12: warning: unused variable 'max_code' [-Wunused-variable]
   16 |  long long max_code;
      |            ^~~~~~~~

Subtask #1
10.0 / 10.0

# 결과 실행 시간 메모리 Grader output
1 Correct 0 ms 256 KB Output is correct
2 Correct 0 ms 256 KB Output is correct
3 Correct 1 ms 256 KB Output is correct
4 Correct 1 ms 256 KB Output is correct
5 Correct 1 ms 256 KB Output is correct

Subtask #2
20.0 / 20.0

# 결과 실행 시간 메모리 Grader output
1 Correct 0 ms 256 KB Output is correct
2 Correct 0 ms 256 KB Output is correct
3 Correct 1 ms 256 KB Output is correct
4 Correct 1 ms 256 KB Output is correct
5 Correct 1 ms 256 KB Output is correct
6 Correct 5 ms 1528 KB Output is correct
7 Correct 7 ms 2548 KB Output is correct
8 Correct 68 ms 16932 KB Output is correct
9 Correct 66 ms 16976 KB Output is correct
10 Correct 59 ms 16984 KB Output is correct

Subtask #3
30.0 / 30.0

# 결과 실행 시간 메모리 Grader output
1 Correct 0 ms 256 KB Output is correct
2 Correct 0 ms 256 KB Output is correct
3 Correct 1 ms 256 KB Output is correct
4 Correct 1 ms 256 KB Output is correct
5 Correct 1 ms 256 KB Output is correct
6 Correct 950 ms 34200 KB Output is correct
7 Correct 813 ms 34200 KB Output is correct
8 Correct 806 ms 34336 KB Output is correct
9 Correct 1409 ms 34116 KB Output is correct
10 Correct 1152 ms 34124 KB Output is correct
11 Correct 427 ms 33468 KB Output is correct
12 Correct 527 ms 33468 KB Output is correct

Subtask #4
0 / 40.0

# 결과 실행 시간 메모리 Grader output
1 Correct 0 ms 256 KB Output is correct
2 Correct 0 ms 256 KB Output is correct
3 Correct 1 ms 256 KB Output is correct
4 Correct 1 ms 256 KB Output is correct
5 Correct 1 ms 256 KB Output is correct
6 Correct 5 ms 1528 KB Output is correct
7 Correct 7 ms 2548 KB Output is correct
8 Correct 68 ms 16932 KB Output is correct
9 Correct 66 ms 16976 KB Output is correct
10 Correct 59 ms 16984 KB Output is correct
11 Correct 950 ms 34200 KB Output is correct
12 Correct 813 ms 34200 KB Output is correct
13 Correct 806 ms 34336 KB Output is correct
14 Correct 1409 ms 34116 KB Output is correct
15 Correct 1152 ms 34124 KB Output is correct
16 Correct 427 ms 33468 KB Output is correct
17 Correct 527 ms 33468 KB Output is correct
18 Execution timed out 2079 ms 264052 KB Time limit exceeded
19 Halted 0 ms 0 KB -