답안 #944247

# 제출 시각 아이디 문제 언어 결과 실행 시간 메모리
944247 2024-03-12T12:39:51 Z Zero_OP Meteors (POI11_met) C++14
74 / 100
905 ms 38808 KB
#include<bits/stdc++.h>

using namespace std;
using int64 = int64_t;

#define int long long
#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);

signed 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, int64 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, int64 val){
        update(l, val);
        update(r + 1, -val);
    }
};

const int MAX = 3e5 + 5;

int n, m, k, o[MAX], p[MAX], u[MAX], v[MAX], c[MAX], l[MAX], r[MAX], mid[MAX], ans[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 >> u[i] >> v[i] >> c[i];
    }
}

void parallel_binary_search(){
    FOR(i, 1, n){
        l[i] = 1;
        r[i] = k;
        ans[i] = -1;
    }

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

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

        FenwickTree BIT(m);

        int j = 1;
        REP(i, sz(query_indices)){
            int id = query_indices[i];
            while(j <= mid[id]){
                if(u[j] <= v[j]){
                    BIT.update_range(u[j], v[j], c[j]);
                }
                else{
                    BIT.update_range(1, v[j], c[j]);
                    BIT.update_range(u[j], m, c[j]);
                }
                ++j;
            }

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

            if(sum >= p[id]){
                r[id] = mid[id] - 1;
                ans[id] = mid[id];
            }
            else l[id] = mid[id] + 1;
        }
    }
}

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

Compilation message

met.cpp: In function 'int main()':
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".inp", "r", stdin);
      |         ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~
met.cpp:62:16: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)' declared with attribute 'warn_unused_result' [-Wunused-result]
   62 |         freopen(task".out", "w", stdout);
      |         ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~
# 결과 실행 시간 메모리 Grader output
1 Correct 5 ms 25180 KB Output is correct
2 Correct 4 ms 25180 KB Output is correct
3 Correct 4 ms 25176 KB Output is correct
# 결과 실행 시간 메모리 Grader output
1 Correct 4 ms 25180 KB Output is correct
2 Correct 5 ms 25180 KB Output is correct
3 Correct 5 ms 25180 KB Output is correct
# 결과 실행 시간 메모리 Grader output
1 Correct 43 ms 28372 KB Output is correct
2 Correct 93 ms 29048 KB Output is correct
3 Correct 77 ms 28860 KB Output is correct
# 결과 실행 시간 메모리 Grader output
1 Correct 70 ms 28612 KB Output is correct
2 Correct 72 ms 28600 KB Output is correct
3 Correct 92 ms 29008 KB Output is correct
4 Correct 29 ms 26576 KB Output is correct
# 결과 실행 시간 메모리 Grader output
1 Correct 67 ms 28512 KB Output is correct
2 Correct 83 ms 28940 KB Output is correct
3 Correct 22 ms 27228 KB Output is correct
4 Correct 75 ms 28888 KB Output is correct
# 결과 실행 시간 메모리 Grader output
1 Correct 35 ms 28116 KB Output is correct
2 Correct 88 ms 28628 KB Output is correct
3 Correct 49 ms 28448 KB Output is correct
4 Correct 99 ms 29088 KB Output is correct
# 결과 실행 시간 메모리 Grader output
1 Correct 887 ms 38808 KB Output is correct
2 Incorrect 728 ms 33428 KB Output isn't correct
3 Halted 0 ms 0 KB -
# 결과 실행 시간 메모리 Grader output
1 Correct 905 ms 38636 KB Output is correct
2 Incorrect 670 ms 33448 KB Output isn't correct
3 Halted 0 ms 0 KB -