oj.uz

Submission #166806

# Submission time Handle Problem Language Result Execution time Memory
166806 2019-12-04T07:19:02 Z Yaroslaff Hedgehog Daniyar and Algorithms (IZhO19_sortbooks) C++14
100 / 100
 1143 ms 67948 KB 
#include <chrono>
#include <random>
#include <iostream>
#include <string>
#include <unordered_map>
#include <cstring>
#include <vector>
#include <map>
#include <set>
#include <algorithm>
#include <math.h>
#include <cstdio>
#include <stdio.h>
#include <queue>
#include <bitset>
#include <cstdlib>
#include <deque>
#include <cassert>
#include <stack>
using namespace std;
 
#define max3(a, b, c) max(a, max(b, c))
#define min3(a, b, c) min(a, min(b, c))
#define mp make_pair
#define f first
#define se second
#define pb push_back
#define ppb pop_back
#define ll long long
#define ull unsigned long long
#define cntbit(x) __builtin_popcount(x)
#define endl '\n'
#define uset unordered_set
#define umap unordered_map
#define pii pair<int, int>
#define ld long double
#define pll pair<long long, long long>
#define tm abc
 
mt19937 rng(chrono::steady_clock::now().time_since_epoch().count());
 
const int mod = 1e9 + 7;
const int inf = 1e9;
const int N = 1e6 + 15;
int n, m, sz, a[N], st[N], ans[N], t[N << 1];
bool output[N];
 
struct query {
    int l, r, k, ind;
    bool operator < (const query &b) const {
        return r < b.r;
    }
} qs[N];
 
inline void update(int i, int val) {
    i += n;
    for(t[i] = max(t[i], val); i > 1; i >>= 1)
        t[i >> 1] = max(t[i >> 1], val);
}
 
inline int get(int l, int r) {
    int res = 0;
    for(l += n, r += n + 1; l < r; l >>= 1, r >>= 1) {
        if(l & 1)
            res = max(res, t[l++]);
        if(r & 1)
            res = max(res, t[--r]);
    }
    return res;
}
 
main() {
    scanf("%d%d", &n, &m);
    for(int i = 1; i <= n; ++i)
        scanf("%d", &a[i]);
    for(int i = 1; i <= m; ++i) {
        scanf("%d%d%d", &qs[i].l, &qs[i].r, &qs[i].k);
        qs[i].ind = i;
    }
    sort(qs + 1, qs + 1 + m);
    int i = 1, j = 1;
    for(; i <= n; ++i) {
        while(sz && a[st[sz - 1]] <= a[i])
            --sz;
        if(sz) {
            int ind_nearest = st[sz - 1];
            int sum = a[ind_nearest] + a[i];
 
            while(j <= m && qs[j].r < i) {
                ans[qs[j].ind] = max(ans[qs[j].ind], get(qs[j].l, n));
                ++j;
            }
            update(ind_nearest, sum);
        }
        st[sz++] = i;
    }
    while(j <= m) {
        ans[qs[j].ind] = max(ans[qs[j].ind], get(qs[j].l, n));
        ++j;
    }
    for(int i = 1; i <= m; ++i)
        if(ans[qs[i].ind] <= qs[i].k)
            output[qs[i].ind] = true;
    for(int i = 1; i <= m; ++i)
        puts(output[i] ? "1" : "0");
    return 0;
}

Compilation message

sortbooks.cpp:72:6: warning: ISO C++ forbids declaration of 'main' with no type [-Wreturn-type]
 main() {
      ^
sortbooks.cpp: In function 'int main()':
sortbooks.cpp:73:10: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
     scanf("%d%d", &n, &m);
     ~~~~~^~~~~~~~~~~~~~~~
sortbooks.cpp:75:14: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
         scanf("%d", &a[i]);
         ~~~~~^~~~~~~~~~~~~
sortbooks.cpp:77:14: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
         scanf("%d%d%d", &qs[i].l, &qs[i].r, &qs[i].k);
         ~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

Subtask #1
8.0 / 8.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 376 KB Output is correct
2 Correct 2 ms 376 KB Output is correct
3 Correct 2 ms 376 KB Output is correct
4 Correct 2 ms 376 KB Output is correct
5 Correct 2 ms 380 KB Output is correct
6 Correct 3 ms 380 KB Output is correct
7 Correct 2 ms 376 KB Output is correct
8 Correct 2 ms 376 KB Output is correct
9 Correct 2 ms 376 KB Output is correct
10 Correct 2 ms 376 KB Output is correct

Subtask #2
9.0 / 9.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 376 KB Output is correct
2 Correct 2 ms 376 KB Output is correct
3 Correct 2 ms 376 KB Output is correct
4 Correct 2 ms 376 KB Output is correct
5 Correct 2 ms 380 KB Output is correct
6 Correct 3 ms 380 KB Output is correct
7 Correct 2 ms 376 KB Output is correct
8 Correct 2 ms 376 KB Output is correct
9 Correct 2 ms 376 KB Output is correct
10 Correct 2 ms 376 KB Output is correct
11 Correct 4 ms 504 KB Output is correct
12 Correct 5 ms 636 KB Output is correct
13 Correct 5 ms 632 KB Output is correct
14 Correct 6 ms 760 KB Output is correct
15 Correct 6 ms 632 KB Output is correct
16 Correct 5 ms 632 KB Output is correct
17 Correct 5 ms 632 KB Output is correct
18 Correct 5 ms 632 KB Output is correct

Subtask #3
13.0 / 13.0

# Verdict Execution time Memory Grader output
1 Correct 1014 ms 65524 KB Output is correct
2 Correct 1045 ms 66540 KB Output is correct
3 Correct 1143 ms 66676 KB Output is correct
4 Correct 1044 ms 66608 KB Output is correct
5 Correct 899 ms 59768 KB Output is correct

Subtask #4
17.0 / 17.0

# Verdict Execution time Memory Grader output
1 Correct 77 ms 5752 KB Output is correct
2 Correct 81 ms 5736 KB Output is correct
3 Correct 71 ms 4960 KB Output is correct
4 Correct 71 ms 4956 KB Output is correct
5 Correct 70 ms 4936 KB Output is correct
6 Correct 71 ms 4728 KB Output is correct
7 Correct 60 ms 4840 KB Output is correct
8 Correct 65 ms 4728 KB Output is correct
9 Correct 44 ms 3960 KB Output is correct
10 Correct 66 ms 4856 KB Output is correct

Subtask #5
30.0 / 30.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 376 KB Output is correct
2 Correct 2 ms 376 KB Output is correct
3 Correct 2 ms 376 KB Output is correct
4 Correct 2 ms 376 KB Output is correct
5 Correct 2 ms 380 KB Output is correct
6 Correct 3 ms 380 KB Output is correct
7 Correct 2 ms 376 KB Output is correct
8 Correct 2 ms 376 KB Output is correct
9 Correct 2 ms 376 KB Output is correct
10 Correct 2 ms 376 KB Output is correct
11 Correct 4 ms 504 KB Output is correct
12 Correct 5 ms 636 KB Output is correct
13 Correct 5 ms 632 KB Output is correct
14 Correct 6 ms 760 KB Output is correct
15 Correct 6 ms 632 KB Output is correct
16 Correct 5 ms 632 KB Output is correct
17 Correct 5 ms 632 KB Output is correct
18 Correct 5 ms 632 KB Output is correct
19 Correct 188 ms 13848 KB Output is correct
20 Correct 186 ms 13816 KB Output is correct
21 Correct 173 ms 13688 KB Output is correct
22 Correct 174 ms 13804 KB Output is correct
23 Correct 173 ms 13628 KB Output is correct
24 Correct 157 ms 12024 KB Output is correct
25 Correct 156 ms 11988 KB Output is correct
26 Correct 165 ms 12160 KB Output is correct
27 Correct 169 ms 12280 KB Output is correct
28 Correct 166 ms 12140 KB Output is correct
29 Correct 170 ms 12248 KB Output is correct
30 Correct 183 ms 12380 KB Output is correct
31 Correct 174 ms 12408 KB Output is correct
32 Correct 172 ms 12184 KB Output is correct
33 Correct 170 ms 12408 KB Output is correct
34 Correct 144 ms 12024 KB Output is correct
35 Correct 141 ms 11896 KB Output is correct
36 Correct 139 ms 11768 KB Output is correct
37 Correct 143 ms 11788 KB Output is correct
38 Correct 141 ms 11884 KB Output is correct
39 Correct 150 ms 11384 KB Output is correct
40 Correct 189 ms 9896 KB Output is correct
41 Correct 152 ms 10436 KB Output is correct

Subtask #6
23.0 / 23.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 376 KB Output is correct
2 Correct 2 ms 376 KB Output is correct
3 Correct 2 ms 376 KB Output is correct
4 Correct 2 ms 376 KB Output is correct
5 Correct 2 ms 380 KB Output is correct
6 Correct 3 ms 380 KB Output is correct
7 Correct 2 ms 376 KB Output is correct
8 Correct 2 ms 376 KB Output is correct
9 Correct 2 ms 376 KB Output is correct
10 Correct 2 ms 376 KB Output is correct
11 Correct 4 ms 504 KB Output is correct
12 Correct 5 ms 636 KB Output is correct
13 Correct 5 ms 632 KB Output is correct
14 Correct 6 ms 760 KB Output is correct
15 Correct 6 ms 632 KB Output is correct
16 Correct 5 ms 632 KB Output is correct
17 Correct 5 ms 632 KB Output is correct
18 Correct 5 ms 632 KB Output is correct
19 Correct 1014 ms 65524 KB Output is correct
20 Correct 1045 ms 66540 KB Output is correct
21 Correct 1143 ms 66676 KB Output is correct
22 Correct 1044 ms 66608 KB Output is correct
23 Correct 899 ms 59768 KB Output is correct
24 Correct 77 ms 5752 KB Output is correct
25 Correct 81 ms 5736 KB Output is correct
26 Correct 71 ms 4960 KB Output is correct
27 Correct 71 ms 4956 KB Output is correct
28 Correct 70 ms 4936 KB Output is correct
29 Correct 71 ms 4728 KB Output is correct
30 Correct 60 ms 4840 KB Output is correct
31 Correct 65 ms 4728 KB Output is correct
32 Correct 44 ms 3960 KB Output is correct
33 Correct 66 ms 4856 KB Output is correct
34 Correct 188 ms 13848 KB Output is correct
35 Correct 186 ms 13816 KB Output is correct
36 Correct 173 ms 13688 KB Output is correct
37 Correct 174 ms 13804 KB Output is correct
38 Correct 173 ms 13628 KB Output is correct
39 Correct 157 ms 12024 KB Output is correct
40 Correct 156 ms 11988 KB Output is correct
41 Correct 165 ms 12160 KB Output is correct
42 Correct 169 ms 12280 KB Output is correct
43 Correct 166 ms 12140 KB Output is correct
44 Correct 170 ms 12248 KB Output is correct
45 Correct 183 ms 12380 KB Output is correct
46 Correct 174 ms 12408 KB Output is correct
47 Correct 172 ms 12184 KB Output is correct
48 Correct 170 ms 12408 KB Output is correct
49 Correct 144 ms 12024 KB Output is correct
50 Correct 141 ms 11896 KB Output is correct
51 Correct 139 ms 11768 KB Output is correct
52 Correct 143 ms 11788 KB Output is correct
53 Correct 141 ms 11884 KB Output is correct
54 Correct 150 ms 11384 KB Output is correct
55 Correct 189 ms 9896 KB Output is correct
56 Correct 152 ms 10436 KB Output is correct
57 Correct 1087 ms 65180 KB Output is correct
58 Correct 1025 ms 67948 KB Output is correct
59 Correct 1004 ms 66664 KB Output is correct
60 Correct 1012 ms 66240 KB Output is correct
61 Correct 1027 ms 66040 KB Output is correct
62 Correct 997 ms 66364 KB Output is correct
63 Correct 799 ms 56616 KB Output is correct
64 Correct 818 ms 55888 KB Output is correct
65 Correct 1006 ms 58920 KB Output is correct
66 Correct 912 ms 56740 KB Output is correct
67 Correct 909 ms 56200 KB Output is correct
68 Correct 917 ms 48544 KB Output is correct
69 Correct 918 ms 53512 KB Output is correct
70 Correct 907 ms 46576 KB Output is correct
71 Correct 914 ms 51420 KB Output is correct
72 Correct 936 ms 45368 KB Output is correct
73 Correct 709 ms 38392 KB Output is correct
74 Correct 725 ms 36336 KB Output is correct
75 Correct 712 ms 32908 KB Output is correct
76 Correct 775 ms 35672 KB Output is correct
77 Correct 740 ms 37164 KB Output is correct
78 Correct 847 ms 40644 KB Output is correct
79 Correct 661 ms 38608 KB Output is correct
80 Correct 778 ms 48004 KB Output is correct