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Submission #118694

# Submission time Handle Problem Language Result Execution time Memory
118694 2019-06-19T11:44:44 Z evpipis Fortune Telling 2 (JOI14_fortune_telling2) C++14
100 / 100
 1189 ms 204016 KB 
#include <bits/stdc++.h>
using namespace std;

#define fi first
#define se second
#define mp make_pair
typedef pair<int, int> ii;
typedef long long ll;

const int len = 2e5+5, mx = 1e9;
ii arr[len];
int num[len], n, m;

struct node{
    int sum, rig;
    node *left, *right;

    node(int s = 0, int p = 0, node *l = NULL, node *r = NULL){
        sum = s;
        rig = p;
        left = l;
        right = r;
    }
};

typedef node* pnode;

pnode suf[len], null = new node();

pnode add(pnode t, int l, int r, int i, int p){
    if (l == r)
        return new node(t->sum+1, max(t->rig, p), null, null);

    int mid = (l+r)/2;
    if (i <= mid)
        return new node(t->sum+1, max(t->rig, p), add(t->left, l, mid, i, p), t->right);
    return new node(t->sum+1, max(t->rig, p), t->left, add(t->right, mid+1, r, i, p));
}

node join(node a, node b){
    node c;
    c.rig = max(a.rig, b.rig);
    c.sum = a.sum+b.sum;

    return c;
}

node ask(pnode t, int l, int r, int i, int j){
    if (r < i || j < l)
        return node();
    if (i <= l && r <= j)
        return *t;

    int mid = (l+r)/2;
    return join(ask(t->left, l, mid, i, j), ask(t->right, mid+1, r, i, j));
}

int main(){
    scanf("%d %d", &n, &m);
    for (int i = 1; i <= n; i++)
        scanf("%d %d", &arr[i].fi, &arr[i].se);

    for (int i = 1; i <= m; i++)
        scanf("%d", &num[i]);

    suf[m+1] = null->left = null->right = null;
    for (int i = m; i >= 1; i--)
        suf[i] = add(suf[i+1], 1, mx, num[i], i);

    ll ans = 0;
    for (int i = 1; i <= n; i++){
        int l = arr[i].fi, r = arr[i].se;
        int pos = 0;
        if (min(l, r) < max(l, r))
            pos = ask(suf[1], 1, mx, min(l, r), max(l, r)-1).rig;
        int cnt = ask(suf[pos+1], 1, mx, max(l, r), mx).sum;

        if (pos == 0){
            if (cnt%2 == 0)
                ans += l;
            else
                ans += r;
        }
        else{
            if (cnt%2 == 0)
                ans += max(l, r);
            else
                ans += min(l, r);
        }
    }

    printf("%lld\n", ans);
    return 0;
}

Compilation message

fortune_telling2.cpp: In function 'int main()':
fortune_telling2.cpp:59:10: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
     scanf("%d %d", &n, &m);
     ~~~~~^~~~~~~~~~~~~~~~~
fortune_telling2.cpp:61:14: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
         scanf("%d %d", &arr[i].fi, &arr[i].se);
         ~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
fortune_telling2.cpp:64:14: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
         scanf("%d", &num[i]);
         ~~~~~^~~~~~~~~~~~~~~

Subtask #1
4.0 / 4.0

# Verdict Execution time Memory Grader output
1 Correct 4 ms 1408 KB Output is correct
2 Correct 4 ms 1408 KB Output is correct
3 Correct 6 ms 1408 KB Output is correct
4 Correct 6 ms 1408 KB Output is correct
5 Correct 5 ms 1280 KB Output is correct
6 Correct 6 ms 1408 KB Output is correct
7 Correct 5 ms 1280 KB Output is correct
8 Correct 5 ms 1284 KB Output is correct
9 Correct 5 ms 1408 KB Output is correct
10 Correct 4 ms 1280 KB Output is correct
11 Correct 5 ms 1408 KB Output is correct
12 Correct 5 ms 1280 KB Output is correct
13 Correct 5 ms 1408 KB Output is correct

Subtask #2
31.0 / 31.0

# Verdict Execution time Memory Grader output
1 Correct 4 ms 1408 KB Output is correct
2 Correct 4 ms 1408 KB Output is correct
3 Correct 6 ms 1408 KB Output is correct
4 Correct 6 ms 1408 KB Output is correct
5 Correct 5 ms 1280 KB Output is correct
6 Correct 6 ms 1408 KB Output is correct
7 Correct 5 ms 1280 KB Output is correct
8 Correct 5 ms 1284 KB Output is correct
9 Correct 5 ms 1408 KB Output is correct
10 Correct 4 ms 1280 KB Output is correct
11 Correct 5 ms 1408 KB Output is correct
12 Correct 5 ms 1280 KB Output is correct
13 Correct 5 ms 1408 KB Output is correct
14 Correct 41 ms 10572 KB Output is correct
15 Correct 178 ms 20572 KB Output is correct
16 Correct 132 ms 30516 KB Output is correct
17 Correct 191 ms 40460 KB Output is correct
18 Correct 189 ms 40316 KB Output is correct
19 Correct 188 ms 40312 KB Output is correct
20 Correct 187 ms 40316 KB Output is correct
21 Correct 164 ms 40316 KB Output is correct
22 Correct 122 ms 40440 KB Output is correct
23 Correct 123 ms 40416 KB Output is correct
24 Correct 123 ms 40384 KB Output is correct
25 Correct 121 ms 40312 KB Output is correct
26 Correct 148 ms 40284 KB Output is correct
27 Correct 204 ms 40412 KB Output is correct
28 Correct 147 ms 40312 KB Output is correct
29 Correct 188 ms 40440 KB Output is correct

Subtask #3
65.0 / 65.0

# Verdict Execution time Memory Grader output
1 Correct 4 ms 1408 KB Output is correct
2 Correct 4 ms 1408 KB Output is correct
3 Correct 6 ms 1408 KB Output is correct
4 Correct 6 ms 1408 KB Output is correct
5 Correct 5 ms 1280 KB Output is correct
6 Correct 6 ms 1408 KB Output is correct
7 Correct 5 ms 1280 KB Output is correct
8 Correct 5 ms 1284 KB Output is correct
9 Correct 5 ms 1408 KB Output is correct
10 Correct 4 ms 1280 KB Output is correct
11 Correct 5 ms 1408 KB Output is correct
12 Correct 5 ms 1280 KB Output is correct
13 Correct 5 ms 1408 KB Output is correct
14 Correct 41 ms 10572 KB Output is correct
15 Correct 178 ms 20572 KB Output is correct
16 Correct 132 ms 30516 KB Output is correct
17 Correct 191 ms 40460 KB Output is correct
18 Correct 189 ms 40316 KB Output is correct
19 Correct 188 ms 40312 KB Output is correct
20 Correct 187 ms 40316 KB Output is correct
21 Correct 164 ms 40316 KB Output is correct
22 Correct 122 ms 40440 KB Output is correct
23 Correct 123 ms 40416 KB Output is correct
24 Correct 123 ms 40384 KB Output is correct
25 Correct 121 ms 40312 KB Output is correct
26 Correct 148 ms 40284 KB Output is correct
27 Correct 204 ms 40412 KB Output is correct
28 Correct 147 ms 40312 KB Output is correct
29 Correct 188 ms 40440 KB Output is correct
30 Correct 505 ms 196868 KB Output is correct
31 Correct 635 ms 197232 KB Output is correct
32 Correct 892 ms 197600 KB Output is correct
33 Correct 1126 ms 198492 KB Output is correct
34 Correct 481 ms 196856 KB Output is correct
35 Correct 1177 ms 198476 KB Output is correct
36 Correct 1189 ms 198612 KB Output is correct
37 Correct 1156 ms 203824 KB Output is correct
38 Correct 1156 ms 203896 KB Output is correct
39 Correct 1132 ms 203872 KB Output is correct
40 Correct 946 ms 203600 KB Output is correct
41 Correct 1153 ms 203868 KB Output is correct
42 Correct 1127 ms 203900 KB Output is correct
43 Correct 705 ms 203084 KB Output is correct
44 Correct 691 ms 203116 KB Output is correct
45 Correct 741 ms 203000 KB Output is correct
46 Correct 738 ms 202036 KB Output is correct
47 Correct 728 ms 201688 KB Output is correct
48 Correct 1042 ms 204016 KB Output is correct
49 Correct 934 ms 203996 KB Output is correct