oj.uz

답안 #444428

# 제출 시각 아이디 문제 언어 결과 실행 시간 메모리
444428 2021-07-14T05:04:47 Z PeppaPig Worst Reporter 4 (JOI21_worst_reporter4) C++14
100 / 100
 698 ms 51200 KB 
#include <bits/stdc++.h>

#define long long long
#define x first
#define y second

using namespace std;

const int N = 2e5 + 5;

int n;
int A[N], H[N], C[N], indeg[N];
map<int, long> f[N];

int main() {
    scanf("%d", &n);

    vector<int> coord;
    for(int i = 1; i <= n; i++) {
        scanf("%d %d %d", A + i, H + i, C + i);
        coord.emplace_back(H[i]);
        ++indeg[A[i]];
    }
    sort(coord.begin(), coord.end());
    coord.resize(unique(coord.begin(), coord.end()) - coord.begin());

    for(int i = 1; i <= n; i++)
        H[i] = lower_bound(coord.begin(), coord.end(), H[i]) - coord.begin();

    vector<int> chk(n + 1);
    queue<int> Q;
    for(int i = 1; i <= n; i++) if(!indeg[i])
        Q.emplace(i), chk[i] = 1;

    while(!Q.empty()) {
        int u = Q.front(); Q.pop();

        f[u][H[u] + 1] += C[u];

        long sum = 0;
        bool valid = false;
        while(f[u].begin()->x != H[u] + 1) {
            auto it = prev(f[u].find(H[u] + 1));
            auto p = *it;

            f[u].erase(it);
            sum += p.y;

            if(C[u] < sum) {
                f[u][p.x] += sum - C[u];
                f[u][0] += C[u];
                valid = true;
                break;
            }
        }

        if(!valid)
            f[u][0] += sum;

        if(f[A[u]].size() < f[u].size())
            swap(f[A[u]], f[u]);
        for(auto p : f[u])
            f[A[u]][p.x] += p.y;
        f[u].clear();

        if(!--indeg[A[u]])
            Q.emplace(A[u]), chk[A[u]] = 1;
    }

    long ans = 0;
    for(int i = 1; i <= n; i++) if(!chk[i]) {
        vector<int> cyc = {i};
        while(A[cyc.back()] != i)
            cyc.emplace_back(A[cyc.back()]);
        
        long sum_cost = 0;
        map<int, long> f_cyc, sub;
        for(int u : cyc) {
            chk[u] = 1;
            sum_cost += C[u];
            sub[H[u]] += C[u];

            if(f_cyc.size() < f[u].size())
                swap(f_cyc, f[u]);
            for(auto p : f[u])
                f_cyc[p.x] += p.y;
        }

        for(auto p : sub) if(!f_cyc.count(p.x))
            f_cyc[p.x] = 0;

        long pref = 0, ret = 1e18;
        for(auto p : f_cyc) {
            pref += f_cyc[p.x];
            f_cyc[p.x] = pref;
        }

        for(auto p : f_cyc)
            ret = min(ret, sum_cost - sub[p.x] + f_cyc[p.x]);

        ans += ret;
    }

    printf("%lld\n", ans);

    return 0;
}

Compilation message

worst_reporter2.cpp: In function 'int main()':
worst_reporter2.cpp:16:10: warning: ignoring return value of 'int scanf(const char*, ...)' declared with attribute 'warn_unused_result' [-Wunused-result]
   16 |     scanf("%d", &n);
      |     ~~~~~^~~~~~~~~~
worst_reporter2.cpp:20:14: warning: ignoring return value of 'int scanf(const char*, ...)' declared with attribute 'warn_unused_result' [-Wunused-result]
   20 |         scanf("%d %d %d", A + i, H + i, C + i);
      |         ~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

Subtask #1
14.0 / 14.0

# 결과 실행 시간 메모리 Grader output
1 Correct 6 ms 9676 KB Output is correct
2 Correct 6 ms 9676 KB Output is correct
3 Correct 6 ms 9676 KB Output is correct
4 Correct 6 ms 9676 KB Output is correct
5 Correct 14 ms 10344 KB Output is correct
6 Correct 11 ms 10132 KB Output is correct
7 Correct 11 ms 10104 KB Output is correct
8 Correct 14 ms 10348 KB Output is correct
9 Correct 11 ms 10232 KB Output is correct
10 Correct 10 ms 10188 KB Output is correct
11 Correct 9 ms 10096 KB Output is correct
12 Correct 11 ms 9896 KB Output is correct
13 Correct 9 ms 9964 KB Output is correct
14 Correct 11 ms 9932 KB Output is correct
15 Correct 11 ms 9932 KB Output is correct
16 Correct 14 ms 10344 KB Output is correct
17 Correct 10 ms 10060 KB Output is correct
18 Correct 9 ms 10060 KB Output is correct
19 Correct 12 ms 10188 KB Output is correct
20 Correct 10 ms 10260 KB Output is correct
21 Correct 9 ms 10188 KB Output is correct
22 Correct 13 ms 10500 KB Output is correct
23 Correct 9 ms 9836 KB Output is correct
24 Correct 13 ms 10188 KB Output is correct
25 Correct 10 ms 9932 KB Output is correct
26 Correct 9 ms 9948 KB Output is correct
27 Correct 12 ms 10316 KB Output is correct
28 Correct 12 ms 10296 KB Output is correct
29 Correct 12 ms 10340 KB Output is correct
30 Correct 12 ms 10444 KB Output is correct
31 Correct 13 ms 10444 KB Output is correct

Subtask #2
65.0 / 65.0

# 결과 실행 시간 메모리 Grader output
1 Correct 6 ms 9676 KB Output is correct
2 Correct 6 ms 9676 KB Output is correct
3 Correct 6 ms 9676 KB Output is correct
4 Correct 6 ms 9676 KB Output is correct
5 Correct 14 ms 10344 KB Output is correct
6 Correct 11 ms 10132 KB Output is correct
7 Correct 11 ms 10104 KB Output is correct
8 Correct 14 ms 10348 KB Output is correct
9 Correct 11 ms 10232 KB Output is correct
10 Correct 10 ms 10188 KB Output is correct
11 Correct 9 ms 10096 KB Output is correct
12 Correct 11 ms 9896 KB Output is correct
13 Correct 9 ms 9964 KB Output is correct
14 Correct 11 ms 9932 KB Output is correct
15 Correct 11 ms 9932 KB Output is correct
16 Correct 14 ms 10344 KB Output is correct
17 Correct 10 ms 10060 KB Output is correct
18 Correct 9 ms 10060 KB Output is correct
19 Correct 12 ms 10188 KB Output is correct
20 Correct 10 ms 10260 KB Output is correct
21 Correct 9 ms 10188 KB Output is correct
22 Correct 13 ms 10500 KB Output is correct
23 Correct 9 ms 9836 KB Output is correct
24 Correct 13 ms 10188 KB Output is correct
25 Correct 10 ms 9932 KB Output is correct
26 Correct 9 ms 9948 KB Output is correct
27 Correct 12 ms 10316 KB Output is correct
28 Correct 12 ms 10296 KB Output is correct
29 Correct 12 ms 10340 KB Output is correct
30 Correct 12 ms 10444 KB Output is correct
31 Correct 13 ms 10444 KB Output is correct
32 Correct 14 ms 10344 KB Output is correct
33 Correct 698 ms 38808 KB Output is correct
34 Correct 385 ms 30552 KB Output is correct
35 Correct 642 ms 38764 KB Output is correct
36 Correct 370 ms 30684 KB Output is correct
37 Correct 219 ms 30152 KB Output is correct
38 Correct 173 ms 28688 KB Output is correct
39 Correct 235 ms 19652 KB Output is correct
40 Correct 193 ms 19640 KB Output is correct
41 Correct 114 ms 19640 KB Output is correct
42 Correct 232 ms 19744 KB Output is correct
43 Correct 199 ms 19600 KB Output is correct
44 Correct 525 ms 37440 KB Output is correct
45 Correct 271 ms 28980 KB Output is correct
46 Correct 113 ms 25476 KB Output is correct
47 Correct 379 ms 33208 KB Output is correct
48 Correct 187 ms 31452 KB Output is correct
49 Correct 127 ms 31560 KB Output is correct
50 Correct 402 ms 42968 KB Output is correct
51 Correct 147 ms 18880 KB Output is correct
52 Correct 356 ms 33536 KB Output is correct
53 Correct 162 ms 19512 KB Output is correct
54 Correct 130 ms 19788 KB Output is correct
55 Correct 317 ms 36532 KB Output is correct
56 Correct 282 ms 37920 KB Output is correct
57 Correct 283 ms 39760 KB Output is correct
58 Correct 431 ms 43780 KB Output is correct
59 Correct 433 ms 43876 KB Output is correct

Subtask #3
21.0 / 21.0

# 결과 실행 시간 메모리 Grader output
1 Correct 6 ms 9676 KB Output is correct
2 Correct 6 ms 9676 KB Output is correct
3 Correct 6 ms 9676 KB Output is correct
4 Correct 6 ms 9676 KB Output is correct
5 Correct 14 ms 10344 KB Output is correct
6 Correct 11 ms 10132 KB Output is correct
7 Correct 11 ms 10104 KB Output is correct
8 Correct 14 ms 10348 KB Output is correct
9 Correct 11 ms 10232 KB Output is correct
10 Correct 10 ms 10188 KB Output is correct
11 Correct 9 ms 10096 KB Output is correct
12 Correct 11 ms 9896 KB Output is correct
13 Correct 9 ms 9964 KB Output is correct
14 Correct 11 ms 9932 KB Output is correct
15 Correct 11 ms 9932 KB Output is correct
16 Correct 14 ms 10344 KB Output is correct
17 Correct 10 ms 10060 KB Output is correct
18 Correct 9 ms 10060 KB Output is correct
19 Correct 12 ms 10188 KB Output is correct
20 Correct 10 ms 10260 KB Output is correct
21 Correct 9 ms 10188 KB Output is correct
22 Correct 13 ms 10500 KB Output is correct
23 Correct 9 ms 9836 KB Output is correct
24 Correct 13 ms 10188 KB Output is correct
25 Correct 10 ms 9932 KB Output is correct
26 Correct 9 ms 9948 KB Output is correct
27 Correct 12 ms 10316 KB Output is correct
28 Correct 12 ms 10296 KB Output is correct
29 Correct 12 ms 10340 KB Output is correct
30 Correct 12 ms 10444 KB Output is correct
31 Correct 13 ms 10444 KB Output is correct
32 Correct 14 ms 10344 KB Output is correct
33 Correct 698 ms 38808 KB Output is correct
34 Correct 385 ms 30552 KB Output is correct
35 Correct 642 ms 38764 KB Output is correct
36 Correct 370 ms 30684 KB Output is correct
37 Correct 219 ms 30152 KB Output is correct
38 Correct 173 ms 28688 KB Output is correct
39 Correct 235 ms 19652 KB Output is correct
40 Correct 193 ms 19640 KB Output is correct
41 Correct 114 ms 19640 KB Output is correct
42 Correct 232 ms 19744 KB Output is correct
43 Correct 199 ms 19600 KB Output is correct
44 Correct 525 ms 37440 KB Output is correct
45 Correct 271 ms 28980 KB Output is correct
46 Correct 113 ms 25476 KB Output is correct
47 Correct 379 ms 33208 KB Output is correct
48 Correct 187 ms 31452 KB Output is correct
49 Correct 127 ms 31560 KB Output is correct
50 Correct 402 ms 42968 KB Output is correct
51 Correct 147 ms 18880 KB Output is correct
52 Correct 356 ms 33536 KB Output is correct
53 Correct 162 ms 19512 KB Output is correct
54 Correct 130 ms 19788 KB Output is correct
55 Correct 317 ms 36532 KB Output is correct
56 Correct 282 ms 37920 KB Output is correct
57 Correct 283 ms 39760 KB Output is correct
58 Correct 431 ms 43780 KB Output is correct
59 Correct 433 ms 43876 KB Output is correct
60 Correct 6 ms 9676 KB Output is correct
61 Correct 6 ms 9676 KB Output is correct
62 Correct 6 ms 9676 KB Output is correct
63 Correct 6 ms 9696 KB Output is correct
64 Correct 559 ms 36280 KB Output is correct
65 Correct 381 ms 28940 KB Output is correct
66 Correct 557 ms 37288 KB Output is correct
67 Correct 338 ms 28896 KB Output is correct
68 Correct 237 ms 28084 KB Output is correct
69 Correct 194 ms 27320 KB Output is correct
70 Correct 429 ms 37308 KB Output is correct
71 Correct 141 ms 20340 KB Output is correct
72 Correct 493 ms 45276 KB Output is correct
73 Correct 148 ms 21044 KB Output is correct
74 Correct 457 ms 51200 KB Output is correct
75 Correct 198 ms 32952 KB Output is correct
76 Correct 161 ms 32916 KB Output is correct
77 Correct 352 ms 38752 KB Output is correct
78 Correct 154 ms 20596 KB Output is correct
79 Correct 457 ms 37324 KB Output is correct
80 Correct 240 ms 25916 KB Output is correct
81 Correct 175 ms 24816 KB Output is correct
82 Correct 367 ms 45504 KB Output is correct
83 Correct 153 ms 19548 KB Output is correct
84 Correct 319 ms 31896 KB Output is correct
85 Correct 329 ms 31884 KB Output is correct
86 Correct 318 ms 31912 KB Output is correct
87 Correct 328 ms 31932 KB Output is correct
88 Correct 340 ms 31940 KB Output is correct