Submission #944236

# Submission time Handle Problem Language Result Execution time Memory
944236 2024-03-12T12:08:00 Z Zero_OP Meteors (POI11_met) C++14
74 / 100
718 ms 25760 KB
#include<bits/stdc++.h>

using namespace std;
using int64 = int64_t;

#define     REP(i, n) for(int i = 0, _n = n; i < _n; ++i)
#define    REPD(i, n) for(int i = n - 1; i >= 0; --i)
#define  FOR(i, l, r) for(int i = l, _r = r; i <= _r; ++i)
#define FORD(i, r, l) for(int i = r, _l = l; i >= _l; --i)
#define          left __left
#define         right __right
#define          prev __prev
#define          next __next
#define           div __div
#define            pb push_back
#define            pf push_front
#define         sz(v) (int)v.size()
#define      range(v) begin(v), end(v)
#define    compact(v) v.erase(unique(range(v)), end(v))
#define      debug(v) "[" #v " = " << (v) << "]"

template<typename T>
    bool minimize(T& a, const T& b){
        if(a > b){
            a = b;
            return true;
        }
        return false;
    }

template<typename T>
    bool maximize(T& a, const T& b){
        if(a < b){
            a = b;
            return true;
        }
        return false;
    }

template<int dimension, class T>
struct vec : public vector<vec<dimension - 1, T>> {
    static_assert(dimension > 0, "Dimension must be positive !\n");
    template<typename... Args>
    vec(int n = 0, Args... args) : vector<vec<dimension - 1, T>>(n, vec<dimension - 1, T>(args...)) {}
};

template<class T>
struct vec<1, T> : public vector<T> {
    vec(int n = 0, T val = T()) : vector<T>(n, val) {}
};

void init(void);
void process(void);

int main(){
    ios_base::sync_with_stdio(0); cin.tie(0);

    #define task "antuvu"
    if(fopen(task".inp", "r")){
        freopen(task".inp", "r", stdin);
        freopen(task".out", "w", stdout);
    }

    int T = 1; //cin >> T;
    while(T--) {
        init();
        process();
    }

    return 0;
}

struct FenwickTree{
    vector<int64> bit;
    FenwickTree(int n) : bit(n + 1, 0) {}

    void update(int id, int val){
        for(; id < sz(bit); id += id & (-id)){
            bit[id] += val;
        }
    }

    int64 query(int id){
        int64 sum = 0;
        for(; id > 0; id -= id & (-id)){
            sum += bit[id];
        }
        return sum;
    }

    void update_range(int l, int r, int val){
        update(l, val);
        update(r + 1, -val);
    }
};

const int MAX = 3e5 + 5;

int n, m, k, o[MAX], p[MAX], lq[MAX], rq[MAX], mq[MAX], ansq[MAX], l[MAX], r[MAX], a[MAX];
vector<int> owned_sections[MAX];

void init(){
    cin >> n >> m;
    FOR(i, 1, m){
        cin >> o[i];
        owned_sections[o[i]].pb(i);
    }

    FOR(i, 1, n){
        cin >> p[i];
    }

    cin >> k;
    FOR(i, 1, k){
        cin >> l[i] >> r[i] >> a[i];
    }
}

void parallel_binary_search(){
    FOR(i, 1, n){
        lq[i] = 1, rq[i] = k, ansq[i] = -1;
    }

    while(true){
        vector<int> query_indices;
        FOR(i, 1, n){
            if(lq[i] <= rq[i]){
                mq[i] = (lq[i] + rq[i]) >> 1;
                query_indices.pb(i);
            }
        }

        if(query_indices.empty()) break;
        sort(range(query_indices), [&](int i, int j){
            return mq[i] < mq[j];
        });

        FenwickTree BIT(m);

        int j = 1;
        REP(i, sz(query_indices)){
            int id = query_indices[i];
            while(j <= mq[id]){
                if(l[j] <= r[j]){
                    BIT.update_range(l[j], r[j], a[j]);
                }
                else{
                    BIT.update_range(1, r[j], a[j]);
                    BIT.update_range(l[j], m, a[j]);
                }
                ++j;
            }

            int64 sum = 0;
            for(int x : owned_sections[id]){
                sum += BIT.query(x);
            }

            if(sum >= p[id]){
                rq[id] = mq[id] - 1;
                ansq[id] = mq[id];
            }
            else lq[id] = mq[id] + 1;
        }
    }
}

void process(){
    parallel_binary_search();
    FOR(i, 1, n){
        if(ansq[i] == -1) cout << "NIE\n";
        else cout << ansq[i] << '\n';
    }
}

Compilation message

met.cpp: In function 'int main()':
met.cpp:60:16: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)' declared with attribute 'warn_unused_result' [-Wunused-result]
   60 |         freopen(task".inp", "r", stdin);
      |         ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~
met.cpp:61:16: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)' declared with attribute 'warn_unused_result' [-Wunused-result]
   61 |         freopen(task".out", "w", stdout);
      |         ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~
# Verdict Execution time Memory Grader output
1 Correct 4 ms 16984 KB Output is correct
2 Correct 3 ms 16984 KB Output is correct
3 Correct 4 ms 16988 KB Output is correct
# Verdict Execution time Memory Grader output
1 Correct 3 ms 16984 KB Output is correct
2 Correct 4 ms 16984 KB Output is correct
3 Correct 4 ms 17000 KB Output is correct
# Verdict Execution time Memory Grader output
1 Correct 47 ms 17752 KB Output is correct
2 Correct 80 ms 18384 KB Output is correct
3 Correct 70 ms 18128 KB Output is correct
# Verdict Execution time Memory Grader output
1 Correct 70 ms 18012 KB Output is correct
2 Correct 71 ms 18008 KB Output is correct
3 Correct 84 ms 18400 KB Output is correct
4 Correct 27 ms 18128 KB Output is correct
# Verdict Execution time Memory Grader output
1 Correct 59 ms 17876 KB Output is correct
2 Correct 73 ms 18508 KB Output is correct
3 Correct 18 ms 16988 KB Output is correct
4 Correct 73 ms 18272 KB Output is correct
# Verdict Execution time Memory Grader output
1 Correct 34 ms 17712 KB Output is correct
2 Correct 74 ms 18012 KB Output is correct
3 Correct 52 ms 17952 KB Output is correct
4 Correct 98 ms 18624 KB Output is correct
# Verdict Execution time Memory Grader output
1 Correct 718 ms 25760 KB Output is correct
2 Incorrect 642 ms 21600 KB Output isn't correct
3 Halted 0 ms 0 KB -
# Verdict Execution time Memory Grader output
1 Correct 716 ms 25368 KB Output is correct
2 Incorrect 570 ms 21724 KB Output isn't correct
3 Halted 0 ms 0 KB -