Submission #44705

# Submission time Handle Problem Language Result Execution time Memory
44705 2018-04-05T08:46:44 Z choikiwon Sterilizing Spray (JOI15_sterilizing) C++17
75 / 100
1937 ms 284272 KB
#include<bits/stdc++.h>
using namespace std;

typedef long long ll;

int N, Q, K;
int C[100010];

struct node {
    ll sum;
    deque<int> dq;
};

node mrg(node &a, node &b) {
    node ret;
    ret.sum = a.sum + b.sum;

    for(int i = 0; i < min(a.dq.size(), b.dq.size()); i++) {
        ret.dq.push_back(a.dq[i] + b.dq[i]);
    }
    for(int i = min(a.dq.size(), b.dq.size()); i < a.dq.size(); i++) {
        ret.dq.push_back(a.dq[i]);
    }
    for(int i = min(a.dq.size(), b.dq.size()); i < b.dq.size(); i++) {
        ret.dq.push_back(b.dq[i]);
    }
    return ret;
}

struct BIT {
    vector<node> tree;
    vector<int> lazy;
    void init() {
        tree = vector<node>(4 * N);
        lazy = vector<int>(4 * N, 0);
        build(0, N - 1, 1);
    }
    void build(int l, int r, int n) {
        if(l == r) {
            tree[n].sum = C[l];
            if(K == 1) tree[n].dq.push_back(C[l]);
            else while(C[l]) tree[n].dq.push_back(C[l] % K), C[l] /= K;
            return;
        }
        int m = (l + r)>>1;
        build(l, m, 2*n);
        build(m + 1, r, 2*n + 1);
        tree[n] = mrg(tree[2*n], tree[2*n + 1]);
    }
    void prop(int l, int r, int n) {
        if(l != r) {
            lazy[2*n] += lazy[n];
            lazy[2*n + 1] += lazy[n];
            while(lazy[n]) {
                if(!tree[2*n].dq.size() && !tree[2*n + 1].dq.size()) break;
                if(tree[2*n].dq.size()) {
                    tree[2*n].sum -= tree[2*n].dq.front(); tree[2*n].dq.pop_front();
                    tree[2*n].sum /= K;
                }
                if(tree[2*n + 1].dq.size()) {
                    tree[2*n + 1].sum -= tree[2*n + 1].dq.front(); tree[2*n + 1].dq.pop_front();
                    tree[2*n + 1].sum /= K;
                }
                lazy[n]--;
            }
            lazy[n] = 0;
        }
    }
    void upd1(int idx, int val, int l, int r, int n) {
        if(idx < l || r < idx) return;
        if(l == r) {
            tree[n].sum = val;
            while(!tree[n].dq.empty()) tree[n].dq.pop_back();
            if(K == 1) tree[n].dq.push_back(val);
            else while(val) tree[n].dq.push_back(val % K), val /= K;
            return;
        }
        prop(l, r, n);
        int m = (l + r)>>1;
        upd1(idx, val, l, m, 2*n);
        upd1(idx, val, m + 1, r, 2*n + 1);
        tree[n] = mrg(tree[2*n], tree[2*n + 1]);
    }
    void upd2(int a, int b, int l, int r, int n) {
        if(b < l || r < a) return;
        if(a <= l && r <= b) {
            if(!tree[n].dq.empty()) {
                tree[n].sum -= tree[n].dq.front(); tree[n].dq.pop_front();
                tree[n].sum /= K;
            }
            lazy[n]++;
            return;
        }
        prop(l, r, n);
        int m = (l + r)>>1;
        upd2(a, b, l, m, 2*n);
        upd2(a, b, m + 1, r, 2*n + 1);
        tree[n] = mrg(tree[2*n], tree[2*n + 1]);
    }
    ll quer(int a, int b, int l, int r, int n) {
        if(b < l || r < a) return 0;
        if(a <= l && r <= b) return tree[n].sum;
        prop(l, r, n);
        int m = (l + r)>>1;
        ll L = quer(a, b, l, m, 2*n);
        ll R = quer(a, b, m + 1, r, 2*n + 1);
        return L + R;
    }
} bit;

int main() {
    scanf("%d %d %d", &N, &Q, &K);

    for(int i = 0; i < N; i++) {
        scanf("%d", &C[i]);
    }

    bit.init();

    for(int i = 0; i < Q; i++) {
        int t, a, b; scanf("%d %d %d", &t, &a, &b);
        if(t == 1) {
            a--;
            bit.upd1(a, b, 0, N - 1, 1);
        }
        if(t == 2) {
            a--; b--;
            bit.upd2(a, b, 0, N - 1, 1);
        }
        if(t == 3) {
            a--; b--;
            printf("%lld\n", bit.quer(a, b, 0, N - 1, 1));
        }
    }
}

Compilation message

sterilizing.cpp: In function 'node mrg(node&, node&)':
sterilizing.cpp:18:22: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
     for(int i = 0; i < min(a.dq.size(), b.dq.size()); i++) {
                    ~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
sterilizing.cpp:21:50: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
     for(int i = min(a.dq.size(), b.dq.size()); i < a.dq.size(); i++) {
                                                ~~^~~~~~~~~~~~~
sterilizing.cpp:24:50: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
     for(int i = min(a.dq.size(), b.dq.size()); i < b.dq.size(); i++) {
                                                ~~^~~~~~~~~~~~~
sterilizing.cpp: In function 'int main()':
sterilizing.cpp:112:10: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
     scanf("%d %d %d", &N, &Q, &K);
     ~~~~~^~~~~~~~~~~~~~~~~~~~~~~~
sterilizing.cpp:115:14: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
         scanf("%d", &C[i]);
         ~~~~~^~~~~~~~~~~~~
sterilizing.cpp:121:27: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
         int t, a, b; scanf("%d %d %d", &t, &a, &b);
                      ~~~~~^~~~~~~~~~~~~~~~~~~~~~~~
# Verdict Execution time Memory Grader output
1 Correct 10 ms 764 KB Output is correct
2 Incorrect 6 ms 2588 KB Output isn't correct
3 Halted 0 ms 0 KB -
# Verdict Execution time Memory Grader output
1 Incorrect 797 ms 136608 KB Output isn't correct
2 Halted 0 ms 0 KB -
# Verdict Execution time Memory Grader output
1 Correct 163 ms 136608 KB Output is correct
2 Correct 263 ms 136608 KB Output is correct
3 Correct 297 ms 136608 KB Output is correct
4 Correct 557 ms 136608 KB Output is correct
5 Correct 1070 ms 281056 KB Output is correct
6 Correct 1047 ms 282468 KB Output is correct
7 Incorrect 1076 ms 283856 KB Output isn't correct
8 Halted 0 ms 0 KB -
# Verdict Execution time Memory Grader output
1 Correct 791 ms 283856 KB Output is correct
2 Correct 968 ms 283856 KB Output is correct
3 Correct 813 ms 283856 KB Output is correct
4 Correct 939 ms 283856 KB Output is correct
5 Correct 1407 ms 284272 KB Output is correct
6 Correct 1602 ms 284272 KB Output is correct
7 Correct 1520 ms 284272 KB Output is correct
8 Correct 1937 ms 284272 KB Output is correct
9 Correct 1296 ms 284272 KB Output is correct
10 Correct 1309 ms 284272 KB Output is correct
11 Correct 1155 ms 284272 KB Output is correct
12 Correct 1566 ms 284272 KB Output is correct