oj.uz

답안 #417058

# 제출 시각 아이디 문제 언어 결과 실행 시간 메모리
417058 2021-06-03T11:15:09 Z tqbfjotld Worst Reporter 4 (JOI21_worst_reporter4) C++14
100 / 100
 390 ms 61656 KB 
#include <bits/stdc++.h>
using namespace std;
#define int long long

int h[200005];
int c[200005];
vector<int> adjl[200005];
int in_cycle[200005];

///pos, increase
set<pair<int,int> > func(int node, bool fin = true){
    set<pair<int,int> > res1;
    for (auto x : adjl[node]){
        if (in_cycle[x]) continue;
        auto res = func(x);
        if (res.size()>res1.size()) swap(res,res1);
        for (auto y : res){
            auto it = res1.lower_bound({y.first,-1});
            if (it!=res1.end() && (*it).first==y.first){
                int t = (*it).second;
                res1.erase(it);
                res1.insert({y.first,y.second+t});
            }
            else{
                res1.insert({y.first,y.second});
            }
        }
    }
    if (!fin) return res1;
    pair<int,int> to_insert = {h[node]+1,c[node]};
    int cursum = 0;
    auto it = res1.lower_bound({h[node]+1,-1});
    if (it!=res1.end() && (*it).first==to_insert.first){
        int t = (*it).second;
        res1.erase(it);
        res1.insert({to_insert.first,to_insert.second+t});
    }
    else{
        res1.insert(to_insert);
    }
    it = res1.lower_bound(to_insert);
    bool done = false;
    while (it!=res1.begin()){
        it--;
        cursum += (*it).second;
        int curpos = (*it).first;
        it = res1.erase(it);
        if (cursum >= c[node]){
            int rem = cursum-c[node];
            if (rem!=0){
                res1.insert({curpos,rem});
            }
            done = true;
            break;
        }
    }
    if (!done){
        if (cursum!=0){
            if ((!res1.empty()) && (*res1.begin()).first==0){
                cursum += (*res1.begin()).second;
                res1.erase(res1.begin());
                res1.insert({0,cursum});
            }
            else
                res1.insert({0,cursum});
        }
    }
    else{
        if ((!res1.empty()) && (*res1.begin()).first==0){
            int t = (*res1.begin()).second;
            res1.erase(res1.begin());
            res1.insert({0,c[node]+t});
        }
        else
            res1.insert({0,c[node]});
    }
    /*printf("node %lld, ret ",node);
    for (auto x : res1){
        printf("(%lld,%lld) ",x);
    }
    printf("\n");*/
    return res1;
}

int p[200005];
int vis[200005];

main(){
    int n;
    scanf("%lld",&n);
    for (int x = 1; x<=n; x++){
        int t;
        scanf("%lld%lld%lld",&t,&h[x],&c[x]);
        p[x] = t;
        adjl[t].push_back(x);
    }
    vector<pair<int,vector<int> > > roots;
    for (int x = 1; x<=n; x++){
        if (vis[x]) continue;
        int c1 = x, c2 = x;
        c1 = p[c1]; c2 = p[p[c2]];
        bool found = false;
        while (c1!=c2){
            if (vis[c1]) {
                found = true;
                break;
            }
            vis[c1] = true;
            c1 = p[c1]; c2 = p[p[c2]];
        }
        if (found||vis[c1]) continue;
        vis[c1] = true;
        in_cycle[c1] = true;
        vector<int> curcycle;
        c2 = p[c2];
        while (c2!=c1){
            curcycle.push_back(c2);
            vis[c2] = true;
            in_cycle[c2] = true;
            c2 = p[c2];
        }
        for (auto x : curcycle){
            for (auto y : adjl[x]){
                if (!in_cycle[y]){
                    adjl[c1].push_back(y);
                }
            }
        }
        curcycle.push_back(c1);
     /*   printf("cycle found: ");
        for (auto x : curcycle) printf("%lld ",x);
        printf("\n");*/
        roots.push_back({c1,curcycle});
    }
    int ans = 0;
    for (auto x : roots){
        int root = x.first;
        int curans = 0;
        vector<pair<int,int> >stuff;
        for (auto y : x.second){
            stuff.push_back({h[y],c[y]});
            curans += c[y];
        }
        auto res = func(root,false);
        int cur = 0;
        stuff.push_back({0,0});
        sort(stuff.begin(),stuff.end());
        vector<pair<int,int> > newstuff;
        for (int x = 0; x<stuff.size(); x++){
            if (x!=0 && stuff[x].first==newstuff.back().first){
                newstuff.back().second+=stuff[x].second;
            }
            else newstuff.push_back(stuff[x]);
        }
        swap(newstuff,stuff);
        auto it = res.begin();
        int best = 999999999999999999LL;
        for (auto val : stuff){
            while (it!=res.end() && (*it).first<=val.first){
                cur += (*it).second;
                it++;
            }
            best = min(best,cur+curans-val.second);
           // printf("try values %lld, %lld %lld\n",cur,val);
        }
        ans += best;
    }
    printf("%lld",ans);
}

Compilation message

worst_reporter2.cpp:88:1: warning: ISO C++ forbids declaration of 'main' with no type [-Wreturn-type]
   88 | main(){
      | ^~~~
worst_reporter2.cpp: In function 'int main()':
worst_reporter2.cpp:149:26: warning: comparison of integer expressions of different signedness: 'long long int' and 'std::vector<std::pair<long long int, long long int> >::size_type' {aka 'long unsigned int'} [-Wsign-compare]
  149 |         for (int x = 0; x<stuff.size(); x++){
      |                         ~^~~~~~~~~~~~~
worst_reporter2.cpp:90:10: warning: ignoring return value of 'int scanf(const char*, ...)' declared with attribute 'warn_unused_result' [-Wunused-result]
   90 |     scanf("%lld",&n);
      |     ~~~~~^~~~~~~~~~~
worst_reporter2.cpp:93:14: warning: ignoring return value of 'int scanf(const char*, ...)' declared with attribute 'warn_unused_result' [-Wunused-result]
   93 |         scanf("%lld%lld%lld",&t,&h[x],&c[x]);
      |         ~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

Subtask #1
14.0 / 14.0

# 결과 실행 시간 메모리 Grader output
1 Correct 3 ms 4940 KB Output is correct
2 Correct 3 ms 4940 KB Output is correct
3 Correct 3 ms 4940 KB Output is correct
4 Correct 3 ms 4940 KB Output is correct
5 Correct 9 ms 5452 KB Output is correct
6 Correct 7 ms 5284 KB Output is correct
7 Correct 7 ms 5176 KB Output is correct
8 Correct 10 ms 5452 KB Output is correct
9 Correct 8 ms 5288 KB Output is correct
10 Correct 7 ms 5180 KB Output is correct
11 Correct 6 ms 5196 KB Output is correct
12 Correct 8 ms 6348 KB Output is correct
13 Correct 7 ms 6348 KB Output is correct
14 Correct 8 ms 5836 KB Output is correct
15 Correct 8 ms 5836 KB Output is correct
16 Correct 10 ms 5492 KB Output is correct
17 Correct 8 ms 5196 KB Output is correct
18 Correct 6 ms 5152 KB Output is correct
19 Correct 8 ms 5836 KB Output is correct
20 Correct 7 ms 5708 KB Output is correct
21 Correct 6 ms 5708 KB Output is correct
22 Correct 6 ms 5452 KB Output is correct
23 Correct 6 ms 5196 KB Output is correct
24 Correct 8 ms 5836 KB Output is correct
25 Correct 7 ms 5704 KB Output is correct
26 Correct 6 ms 6348 KB Output is correct
27 Correct 8 ms 5820 KB Output is correct
28 Correct 8 ms 6080 KB Output is correct
29 Correct 8 ms 6348 KB Output is correct
30 Correct 9 ms 6212 KB Output is correct
31 Correct 8 ms 6220 KB Output is correct

Subtask #2
65.0 / 65.0

# 결과 실행 시간 메모리 Grader output
1 Correct 3 ms 4940 KB Output is correct
2 Correct 3 ms 4940 KB Output is correct
3 Correct 3 ms 4940 KB Output is correct
4 Correct 3 ms 4940 KB Output is correct
5 Correct 9 ms 5452 KB Output is correct
6 Correct 7 ms 5284 KB Output is correct
7 Correct 7 ms 5176 KB Output is correct
8 Correct 10 ms 5452 KB Output is correct
9 Correct 8 ms 5288 KB Output is correct
10 Correct 7 ms 5180 KB Output is correct
11 Correct 6 ms 5196 KB Output is correct
12 Correct 8 ms 6348 KB Output is correct
13 Correct 7 ms 6348 KB Output is correct
14 Correct 8 ms 5836 KB Output is correct
15 Correct 8 ms 5836 KB Output is correct
16 Correct 10 ms 5492 KB Output is correct
17 Correct 8 ms 5196 KB Output is correct
18 Correct 6 ms 5152 KB Output is correct
19 Correct 8 ms 5836 KB Output is correct
20 Correct 7 ms 5708 KB Output is correct
21 Correct 6 ms 5708 KB Output is correct
22 Correct 6 ms 5452 KB Output is correct
23 Correct 6 ms 5196 KB Output is correct
24 Correct 8 ms 5836 KB Output is correct
25 Correct 7 ms 5704 KB Output is correct
26 Correct 6 ms 6348 KB Output is correct
27 Correct 8 ms 5820 KB Output is correct
28 Correct 8 ms 6080 KB Output is correct
29 Correct 8 ms 6348 KB Output is correct
30 Correct 9 ms 6212 KB Output is correct
31 Correct 8 ms 6220 KB Output is correct
32 Correct 9 ms 5520 KB Output is correct
33 Correct 390 ms 27408 KB Output is correct
34 Correct 277 ms 15444 KB Output is correct
35 Correct 373 ms 25400 KB Output is correct
36 Correct 270 ms 15348 KB Output is correct
37 Correct 181 ms 14884 KB Output is correct
38 Correct 156 ms 14916 KB Output is correct
39 Correct 236 ms 58328 KB Output is correct
40 Correct 210 ms 58180 KB Output is correct
41 Correct 154 ms 58164 KB Output is correct
42 Correct 211 ms 38056 KB Output is correct
43 Correct 216 ms 37980 KB Output is correct
44 Correct 376 ms 25956 KB Output is correct
45 Correct 246 ms 14120 KB Output is correct
46 Correct 109 ms 13692 KB Output is correct
47 Correct 267 ms 40884 KB Output is correct
48 Correct 180 ms 34072 KB Output is correct
49 Correct 135 ms 34104 KB Output is correct
50 Correct 250 ms 23800 KB Output is correct
51 Correct 120 ms 11312 KB Output is correct
52 Correct 285 ms 41992 KB Output is correct
53 Correct 175 ms 34880 KB Output is correct
54 Correct 143 ms 58180 KB Output is correct
55 Correct 234 ms 44160 KB Output is correct
56 Correct 224 ms 56056 KB Output is correct
57 Correct 231 ms 61656 KB Output is correct
58 Correct 277 ms 56628 KB Output is correct
59 Correct 294 ms 56620 KB Output is correct

Subtask #3
21.0 / 21.0

# 결과 실행 시간 메모리 Grader output
1 Correct 3 ms 4940 KB Output is correct
2 Correct 3 ms 4940 KB Output is correct
3 Correct 3 ms 4940 KB Output is correct
4 Correct 3 ms 4940 KB Output is correct
5 Correct 9 ms 5452 KB Output is correct
6 Correct 7 ms 5284 KB Output is correct
7 Correct 7 ms 5176 KB Output is correct
8 Correct 10 ms 5452 KB Output is correct
9 Correct 8 ms 5288 KB Output is correct
10 Correct 7 ms 5180 KB Output is correct
11 Correct 6 ms 5196 KB Output is correct
12 Correct 8 ms 6348 KB Output is correct
13 Correct 7 ms 6348 KB Output is correct
14 Correct 8 ms 5836 KB Output is correct
15 Correct 8 ms 5836 KB Output is correct
16 Correct 10 ms 5492 KB Output is correct
17 Correct 8 ms 5196 KB Output is correct
18 Correct 6 ms 5152 KB Output is correct
19 Correct 8 ms 5836 KB Output is correct
20 Correct 7 ms 5708 KB Output is correct
21 Correct 6 ms 5708 KB Output is correct
22 Correct 6 ms 5452 KB Output is correct
23 Correct 6 ms 5196 KB Output is correct
24 Correct 8 ms 5836 KB Output is correct
25 Correct 7 ms 5704 KB Output is correct
26 Correct 6 ms 6348 KB Output is correct
27 Correct 8 ms 5820 KB Output is correct
28 Correct 8 ms 6080 KB Output is correct
29 Correct 8 ms 6348 KB Output is correct
30 Correct 9 ms 6212 KB Output is correct
31 Correct 8 ms 6220 KB Output is correct
32 Correct 9 ms 5520 KB Output is correct
33 Correct 390 ms 27408 KB Output is correct
34 Correct 277 ms 15444 KB Output is correct
35 Correct 373 ms 25400 KB Output is correct
36 Correct 270 ms 15348 KB Output is correct
37 Correct 181 ms 14884 KB Output is correct
38 Correct 156 ms 14916 KB Output is correct
39 Correct 236 ms 58328 KB Output is correct
40 Correct 210 ms 58180 KB Output is correct
41 Correct 154 ms 58164 KB Output is correct
42 Correct 211 ms 38056 KB Output is correct
43 Correct 216 ms 37980 KB Output is correct
44 Correct 376 ms 25956 KB Output is correct
45 Correct 246 ms 14120 KB Output is correct
46 Correct 109 ms 13692 KB Output is correct
47 Correct 267 ms 40884 KB Output is correct
48 Correct 180 ms 34072 KB Output is correct
49 Correct 135 ms 34104 KB Output is correct
50 Correct 250 ms 23800 KB Output is correct
51 Correct 120 ms 11312 KB Output is correct
52 Correct 285 ms 41992 KB Output is correct
53 Correct 175 ms 34880 KB Output is correct
54 Correct 143 ms 58180 KB Output is correct
55 Correct 234 ms 44160 KB Output is correct
56 Correct 224 ms 56056 KB Output is correct
57 Correct 231 ms 61656 KB Output is correct
58 Correct 277 ms 56628 KB Output is correct
59 Correct 294 ms 56620 KB Output is correct
60 Correct 3 ms 4940 KB Output is correct
61 Correct 3 ms 4940 KB Output is correct
62 Correct 3 ms 4940 KB Output is correct
63 Correct 4 ms 4944 KB Output is correct
64 Correct 353 ms 29932 KB Output is correct
65 Correct 297 ms 22452 KB Output is correct
66 Correct 341 ms 30364 KB Output is correct
67 Correct 289 ms 22492 KB Output is correct
68 Correct 204 ms 22052 KB Output is correct
69 Correct 175 ms 22400 KB Output is correct
70 Correct 179 ms 35140 KB Output is correct
71 Correct 192 ms 29656 KB Output is correct
72 Correct 177 ms 36536 KB Output is correct
73 Correct 184 ms 33432 KB Output is correct
74 Correct 259 ms 34232 KB Output is correct
75 Correct 195 ms 26496 KB Output is correct
76 Correct 174 ms 26500 KB Output is correct
77 Correct 208 ms 35176 KB Output is correct
78 Correct 169 ms 27232 KB Output is correct
79 Correct 305 ms 35328 KB Output is correct
80 Correct 241 ms 27556 KB Output is correct
81 Correct 206 ms 27600 KB Output is correct
82 Correct 178 ms 36800 KB Output is correct
83 Correct 152 ms 36764 KB Output is correct
84 Correct 294 ms 44696 KB Output is correct
85 Correct 292 ms 44712 KB Output is correct
86 Correct 278 ms 43444 KB Output is correct
87 Correct 293 ms 44772 KB Output is correct
88 Correct 288 ms 44784 KB Output is correct