oj.uz

답안 #974933

# 제출 시각 아이디 문제 언어 결과 실행 시간 메모리
974933 2024-05-04T07:23:50 Z yeediot Port Facility (JOI17_port_facility) C++17
100 / 100
 1539 ms 229428 KB 
#include<bits/stdc++.h>
using namespace std;
#define int long long
#define F first
#define S second
#define all(x) x.begin(),x.end()
#define pii pair<int,int>
#define pb push_back
#define sz(x) (int)(x.size())
#define chmin(x,y) x=min(x,y)
#define chmax(x,y) x=max(x,y)
#define vi vector<int>
#define vp vector<pii>
#define vvi vector<vi>
#define ykh mt19937_64 rng(chrono::steady_clock::now().time_since_epoch().count())
#define __lg(x) 63-__builtin_clzll(x)
#define pow2(x) (1LL<<x)
void __print(int x) {cerr << x;}
void __print(float x) {cerr << x;}
void __print(double x) {cerr << x;}
void __print(long double x) {cerr << x;}
void __print(char x) {cerr << '\'' << x << '\'';}
void __print(const char *x) {cerr << '\"' << x << '\"';}
void __print(const string &x) {cerr << '\"' << x << '\"';}
void __print(bool x) {cerr << (x ? "true" : "false");}

template<typename T, typename V>
void __print(const pair<T, V> &x) {cerr << '{'; __print(x.first); cerr << ','; __print(x.second); cerr << '}';}
template<typename T>
void __print(const T &x) {int f = 0; cerr << '{'; for (auto &i: x) cerr << (f++ ? "," : ""), __print(i); cerr << "}";}
void _print() {cerr << "]\n";}
template <typename T, typename... V>
void _print(T t, V... v) {__print(t); if (sizeof...(v)) cerr << ", "; _print(v...);}
#ifdef local
void setio(){freopen("/Users/iantsai/Library/Mobile Documents/com~apple~CloudDocs/cpp/Empty.md","r",stdin);}
#define debug(x...) cerr << "[" << #x << "] = ["; _print(x)
#else
void setio(){}
#define debug(x...)
#endif
void setIO(string s) {
    freopen((s + ".in").c_str(), "r", stdin);
    freopen((s + ".out").c_str(), "w", stdout);
}
struct line{
    int a,b;
    int operator()(const int x)const{
        return a*x+b;
    }
};
bool check(line l1,line l2,line l3){
    return (l3.b-l2.b)*(l1.a-l2.a)<=(l2.b-l1.b)*(l2.a-l3.a);
}
const int mxn=1e6+5;
const int mod=1e9+7;
vector<int>adj[mxn];
int col[mxn];
int ans;
void dfs(int v,int pa){
    for(auto u:adj[v]){
        if(u==pa){
            continue;
        }
        if(col[u]){
            if(col[u]+col[v]!=3){
                ans=0;
                return;
            }
        }
        else{
            col[u]=3-col[v];
            dfs(u,v);
        }
    }
}
signed main(){
    setio();
    ios::sync_with_stdio(0);
    cin.tie(0);cout.tie(0);
    int n;
    cin>>n;
    vector<pii>v;
    ans=1;
    v.pb({0,0});
    vector<int>nxt(n+1);
    vector<int>in[2*n+1];
    for(int i=1;i<=n;i++){
        int a,b;
        cin>>a>>b;
        v.pb({a,b});
        in[a].pb(i);
    }
    set<pii>st;
    for(int i=1;i<=2*n;i++){
        for(auto id:in[i]){
            while(sz(st) and st.begin()->F<v[id].F){
                int x=st.begin()->S;
                st.erase(st.begin());
                if(nxt[x])st.insert({v[nxt[x]].S,nxt[x]});
            }
            auto cur=st.insert({v[id].S,id}).F;
            vector<pii>del;
            while(cur!=st.begin()){
                cur=prev(cur);
                del.pb(*cur);
            }
            for(auto p:del){
                adj[p.S].pb(id);
                adj[id].pb(p.S);
            }
            for(auto p:del){
                if(p!=del.back())st.erase(p);
            }
            for(int j=1;j<sz(del);j++){
                nxt[del[j].S]=del[j-1].S;
            }
        }
    }
    for(int i=1;i<=n;i++){
        if(!col[i]){
            col[i]=1;
            dfs(i,i);
            ans=ans*2%mod;
        }
    }
    cout<<ans<<'\n';
}
 /*
 input:
 
 */

Compilation message

port_facility.cpp: In function 'void setIO(std::string)':
port_facility.cpp:42:12: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)' declared with attribute 'warn_unused_result' [-Wunused-result]
   42 |     freopen((s + ".in").c_str(), "r", stdin);
      |     ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
port_facility.cpp:43:12: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)' declared with attribute 'warn_unused_result' [-Wunused-result]
   43 |     freopen((s + ".out").c_str(), "w", stdout);
      |     ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

Subtask #1
10.0 / 10.0

# 결과 실행 시간 메모리 Grader output
1 Correct 5 ms 25436 KB Output is correct
2 Correct 7 ms 25436 KB Output is correct
3 Correct 6 ms 25436 KB Output is correct
4 Correct 6 ms 25432 KB Output is correct
5 Correct 6 ms 25436 KB Output is correct
6 Correct 6 ms 25304 KB Output is correct
7 Correct 6 ms 25436 KB Output is correct
8 Correct 6 ms 25432 KB Output is correct
9 Correct 7 ms 25432 KB Output is correct
10 Correct 5 ms 25436 KB Output is correct
11 Correct 6 ms 25436 KB Output is correct
12 Correct 6 ms 25276 KB Output is correct
13 Correct 8 ms 25432 KB Output is correct
14 Correct 6 ms 25432 KB Output is correct
15 Correct 6 ms 25436 KB Output is correct
16 Correct 6 ms 25436 KB Output is correct
17 Correct 6 ms 25436 KB Output is correct
18 Correct 6 ms 25436 KB Output is correct
19 Correct 6 ms 25436 KB Output is correct
20 Correct 5 ms 25436 KB Output is correct
21 Correct 6 ms 25432 KB Output is correct
22 Correct 6 ms 25436 KB Output is correct
23 Correct 6 ms 25432 KB Output is correct
24 Correct 5 ms 25436 KB Output is correct

Subtask #2
12.0 / 12.0

# 결과 실행 시간 메모리 Grader output
1 Correct 5 ms 25436 KB Output is correct
2 Correct 7 ms 25436 KB Output is correct
3 Correct 6 ms 25436 KB Output is correct
4 Correct 6 ms 25432 KB Output is correct
5 Correct 6 ms 25436 KB Output is correct
6 Correct 6 ms 25304 KB Output is correct
7 Correct 6 ms 25436 KB Output is correct
8 Correct 6 ms 25432 KB Output is correct
9 Correct 7 ms 25432 KB Output is correct
10 Correct 5 ms 25436 KB Output is correct
11 Correct 6 ms 25436 KB Output is correct
12 Correct 6 ms 25276 KB Output is correct
13 Correct 8 ms 25432 KB Output is correct
14 Correct 6 ms 25432 KB Output is correct
15 Correct 6 ms 25436 KB Output is correct
16 Correct 6 ms 25436 KB Output is correct
17 Correct 6 ms 25436 KB Output is correct
18 Correct 6 ms 25436 KB Output is correct
19 Correct 6 ms 25436 KB Output is correct
20 Correct 5 ms 25436 KB Output is correct
21 Correct 6 ms 25432 KB Output is correct
22 Correct 6 ms 25436 KB Output is correct
23 Correct 6 ms 25432 KB Output is correct
24 Correct 5 ms 25436 KB Output is correct
25 Correct 7 ms 25692 KB Output is correct
26 Correct 7 ms 25692 KB Output is correct
27 Correct 7 ms 25940 KB Output is correct
28 Correct 7 ms 25692 KB Output is correct
29 Correct 7 ms 25692 KB Output is correct
30 Correct 7 ms 25688 KB Output is correct
31 Correct 7 ms 25800 KB Output is correct
32 Correct 7 ms 25692 KB Output is correct
33 Correct 7 ms 25720 KB Output is correct
34 Correct 9 ms 25692 KB Output is correct
35 Correct 6 ms 25432 KB Output is correct
36 Correct 6 ms 25692 KB Output is correct
37 Correct 7 ms 25692 KB Output is correct
38 Correct 6 ms 25692 KB Output is correct
39 Correct 8 ms 25692 KB Output is correct
40 Correct 6 ms 25436 KB Output is correct
41 Correct 6 ms 25692 KB Output is correct
42 Correct 7 ms 25760 KB Output is correct
43 Correct 6 ms 25692 KB Output is correct
44 Correct 7 ms 25692 KB Output is correct

Subtask #3
56.0 / 56.0

# 결과 실행 시간 메모리 Grader output
1 Correct 5 ms 25436 KB Output is correct
2 Correct 7 ms 25436 KB Output is correct
3 Correct 6 ms 25436 KB Output is correct
4 Correct 6 ms 25432 KB Output is correct
5 Correct 6 ms 25436 KB Output is correct
6 Correct 6 ms 25304 KB Output is correct
7 Correct 6 ms 25436 KB Output is correct
8 Correct 6 ms 25432 KB Output is correct
9 Correct 7 ms 25432 KB Output is correct
10 Correct 5 ms 25436 KB Output is correct
11 Correct 6 ms 25436 KB Output is correct
12 Correct 6 ms 25276 KB Output is correct
13 Correct 8 ms 25432 KB Output is correct
14 Correct 6 ms 25432 KB Output is correct
15 Correct 6 ms 25436 KB Output is correct
16 Correct 6 ms 25436 KB Output is correct
17 Correct 6 ms 25436 KB Output is correct
18 Correct 6 ms 25436 KB Output is correct
19 Correct 6 ms 25436 KB Output is correct
20 Correct 5 ms 25436 KB Output is correct
21 Correct 6 ms 25432 KB Output is correct
22 Correct 6 ms 25436 KB Output is correct
23 Correct 6 ms 25432 KB Output is correct
24 Correct 5 ms 25436 KB Output is correct
25 Correct 7 ms 25692 KB Output is correct
26 Correct 7 ms 25692 KB Output is correct
27 Correct 7 ms 25940 KB Output is correct
28 Correct 7 ms 25692 KB Output is correct
29 Correct 7 ms 25692 KB Output is correct
30 Correct 7 ms 25688 KB Output is correct
31 Correct 7 ms 25800 KB Output is correct
32 Correct 7 ms 25692 KB Output is correct
33 Correct 7 ms 25720 KB Output is correct
34 Correct 9 ms 25692 KB Output is correct
35 Correct 6 ms 25432 KB Output is correct
36 Correct 6 ms 25692 KB Output is correct
37 Correct 7 ms 25692 KB Output is correct
38 Correct 6 ms 25692 KB Output is correct
39 Correct 8 ms 25692 KB Output is correct
40 Correct 6 ms 25436 KB Output is correct
41 Correct 6 ms 25692 KB Output is correct
42 Correct 7 ms 25760 KB Output is correct
43 Correct 6 ms 25692 KB Output is correct
44 Correct 7 ms 25692 KB Output is correct
45 Correct 84 ms 42092 KB Output is correct
46 Correct 84 ms 42456 KB Output is correct
47 Correct 75 ms 41924 KB Output is correct
48 Correct 73 ms 42480 KB Output is correct
49 Correct 87 ms 42208 KB Output is correct
50 Correct 87 ms 42512 KB Output is correct
51 Correct 74 ms 42436 KB Output is correct
52 Correct 36 ms 37568 KB Output is correct
53 Correct 48 ms 43712 KB Output is correct
54 Correct 92 ms 44672 KB Output is correct
55 Correct 64 ms 44996 KB Output is correct
56 Correct 66 ms 44600 KB Output is correct
57 Correct 51 ms 40644 KB Output is correct
58 Correct 37 ms 37528 KB Output is correct
59 Correct 61 ms 39944 KB Output is correct
60 Correct 59 ms 40764 KB Output is correct
61 Correct 65 ms 41156 KB Output is correct
62 Correct 62 ms 41972 KB Output is correct
63 Correct 65 ms 40384 KB Output is correct
64 Correct 95 ms 41664 KB Output is correct
65 Correct 85 ms 42788 KB Output is correct
66 Correct 76 ms 42692 KB Output is correct
67 Correct 100 ms 44484 KB Output is correct
68 Correct 91 ms 44516 KB Output is correct
69 Correct 70 ms 45684 KB Output is correct
70 Correct 70 ms 45652 KB Output is correct
71 Correct 69 ms 44804 KB Output is correct
72 Correct 63 ms 44716 KB Output is correct
73 Correct 73 ms 46020 KB Output is correct
74 Correct 68 ms 46016 KB Output is correct
75 Correct 54 ms 43456 KB Output is correct
76 Correct 58 ms 45476 KB Output is correct
77 Correct 60 ms 45248 KB Output is correct
78 Correct 70 ms 42288 KB Output is correct
79 Correct 68 ms 42060 KB Output is correct

Subtask #4
22.0 / 22.0

# 결과 실행 시간 메모리 Grader output
1 Correct 5 ms 25436 KB Output is correct
2 Correct 7 ms 25436 KB Output is correct
3 Correct 6 ms 25436 KB Output is correct
4 Correct 6 ms 25432 KB Output is correct
5 Correct 6 ms 25436 KB Output is correct
6 Correct 6 ms 25304 KB Output is correct
7 Correct 6 ms 25436 KB Output is correct
8 Correct 6 ms 25432 KB Output is correct
9 Correct 7 ms 25432 KB Output is correct
10 Correct 5 ms 25436 KB Output is correct
11 Correct 6 ms 25436 KB Output is correct
12 Correct 6 ms 25276 KB Output is correct
13 Correct 8 ms 25432 KB Output is correct
14 Correct 6 ms 25432 KB Output is correct
15 Correct 6 ms 25436 KB Output is correct
16 Correct 6 ms 25436 KB Output is correct
17 Correct 6 ms 25436 KB Output is correct
18 Correct 6 ms 25436 KB Output is correct
19 Correct 6 ms 25436 KB Output is correct
20 Correct 5 ms 25436 KB Output is correct
21 Correct 6 ms 25432 KB Output is correct
22 Correct 6 ms 25436 KB Output is correct
23 Correct 6 ms 25432 KB Output is correct
24 Correct 5 ms 25436 KB Output is correct
25 Correct 7 ms 25692 KB Output is correct
26 Correct 7 ms 25692 KB Output is correct
27 Correct 7 ms 25940 KB Output is correct
28 Correct 7 ms 25692 KB Output is correct
29 Correct 7 ms 25692 KB Output is correct
30 Correct 7 ms 25688 KB Output is correct
31 Correct 7 ms 25800 KB Output is correct
32 Correct 7 ms 25692 KB Output is correct
33 Correct 7 ms 25720 KB Output is correct
34 Correct 9 ms 25692 KB Output is correct
35 Correct 6 ms 25432 KB Output is correct
36 Correct 6 ms 25692 KB Output is correct
37 Correct 7 ms 25692 KB Output is correct
38 Correct 6 ms 25692 KB Output is correct
39 Correct 8 ms 25692 KB Output is correct
40 Correct 6 ms 25436 KB Output is correct
41 Correct 6 ms 25692 KB Output is correct
42 Correct 7 ms 25760 KB Output is correct
43 Correct 6 ms 25692 KB Output is correct
44 Correct 7 ms 25692 KB Output is correct
45 Correct 84 ms 42092 KB Output is correct
46 Correct 84 ms 42456 KB Output is correct
47 Correct 75 ms 41924 KB Output is correct
48 Correct 73 ms 42480 KB Output is correct
49 Correct 87 ms 42208 KB Output is correct
50 Correct 87 ms 42512 KB Output is correct
51 Correct 74 ms 42436 KB Output is correct
52 Correct 36 ms 37568 KB Output is correct
53 Correct 48 ms 43712 KB Output is correct
54 Correct 92 ms 44672 KB Output is correct
55 Correct 64 ms 44996 KB Output is correct
56 Correct 66 ms 44600 KB Output is correct
57 Correct 51 ms 40644 KB Output is correct
58 Correct 37 ms 37528 KB Output is correct
59 Correct 61 ms 39944 KB Output is correct
60 Correct 59 ms 40764 KB Output is correct
61 Correct 65 ms 41156 KB Output is correct
62 Correct 62 ms 41972 KB Output is correct
63 Correct 65 ms 40384 KB Output is correct
64 Correct 95 ms 41664 KB Output is correct
65 Correct 85 ms 42788 KB Output is correct
66 Correct 76 ms 42692 KB Output is correct
67 Correct 100 ms 44484 KB Output is correct
68 Correct 91 ms 44516 KB Output is correct
69 Correct 70 ms 45684 KB Output is correct
70 Correct 70 ms 45652 KB Output is correct
71 Correct 69 ms 44804 KB Output is correct
72 Correct 63 ms 44716 KB Output is correct
73 Correct 73 ms 46020 KB Output is correct
74 Correct 68 ms 46016 KB Output is correct
75 Correct 54 ms 43456 KB Output is correct
76 Correct 58 ms 45476 KB Output is correct
77 Correct 60 ms 45248 KB Output is correct
78 Correct 70 ms 42288 KB Output is correct
79 Correct 68 ms 42060 KB Output is correct
80 Correct 1279 ms 188976 KB Output is correct
81 Correct 1257 ms 189900 KB Output is correct
82 Correct 1277 ms 188204 KB Output is correct
83 Correct 1244 ms 189056 KB Output is correct
84 Correct 1326 ms 189296 KB Output is correct
85 Correct 1510 ms 187148 KB Output is correct
86 Correct 1509 ms 189032 KB Output is correct
87 Correct 774 ms 144776 KB Output is correct
88 Correct 808 ms 207264 KB Output is correct
89 Correct 1387 ms 225540 KB Output is correct
90 Correct 1444 ms 223016 KB Output is correct
91 Correct 1440 ms 221344 KB Output is correct
92 Correct 987 ms 178632 KB Output is correct
93 Correct 651 ms 146464 KB Output is correct
94 Correct 966 ms 174392 KB Output is correct
95 Correct 1247 ms 181196 KB Output is correct
96 Correct 1233 ms 180776 KB Output is correct
97 Correct 1218 ms 185228 KB Output is correct
98 Correct 1404 ms 182916 KB Output is correct
99 Correct 1516 ms 187256 KB Output is correct
100 Correct 1470 ms 198536 KB Output is correct
101 Correct 1482 ms 196172 KB Output is correct
102 Correct 1478 ms 214436 KB Output is correct
103 Correct 1437 ms 214388 KB Output is correct
104 Correct 1539 ms 227628 KB Output is correct
105 Correct 1473 ms 227928 KB Output is correct
106 Correct 1283 ms 217228 KB Output is correct
107 Correct 1362 ms 217168 KB Output is correct
108 Correct 1358 ms 228724 KB Output is correct
109 Correct 1432 ms 229428 KB Output is correct
110 Correct 1154 ms 223912 KB Output is correct
111 Correct 1160 ms 224732 KB Output is correct
112 Correct 1158 ms 224656 KB Output is correct
113 Correct 1236 ms 189860 KB Output is correct
114 Correct 1363 ms 190888 KB Output is correct