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답안 #442225

# 제출 시각 아이디 문제 언어 결과 실행 시간 메모리
442225 2021-07-07T10:04:27 Z cheetose Worst Reporter 4 (JOI21_worst_reporter4) C++17
100 / 100
 415 ms 106784 KB 
#include <bits/stdc++.h>
#define mp make_pair
#define pb push_back
#define X first
#define Y second
#define y0 y12
#define y1 y22
#define INF 987654321987654321
#define PI 3.141592653589793238462643383279502884
#define fup(i,a,b,c) for(int (i)=(a);(i)<=(b);(i)+=(c))
#define fdn(i,a,b,c) for(int (i)=(a);(i)>=(b);(i)-=(c))
#define MEM0(a) memset((a),0,sizeof(a))
#define MEM_1(a) memset((a),-1,sizeof(a))
#define ALL(a) a.begin(),a.end()
#define COMPRESS(a) sort(ALL(a));a.resize(unique(ALL(a))-a.begin())
#define SYNC ios_base::sync_with_stdio(false);cin.tie(0)
using namespace std;
typedef long long ll;
typedef long double ld;
typedef double db;
typedef unsigned int uint;
typedef unsigned long long ull;
typedef pair<int, int> Pi;
typedef pair<ll, ll> Pll;
typedef pair<ld, ld> Pd;
typedef vector<int> Vi;
typedef vector<ll> Vll;
typedef vector<ld> Vd;
typedef vector<Pi> VPi;
typedef vector<Pll> VPll;
typedef vector<Pd> VPd;
typedef tuple<int, int, int> iii;
typedef tuple<int, int, int, int> iiii;
typedef tuple<ll, ll, ll> LLL;
typedef vector<iii> Viii;
typedef vector<LLL> VLLL;
typedef complex<double> base;
const int MOD = 1000000007;
ll POW(ll a, ll b, ll MMM = MOD) { ll ret = 1; for (; b; b >>= 1, a = (a*a) % MMM)if (b & 1)ret = (ret*a) % MMM; return ret; }
int dx[] = { 0,1,0,-1,1,1,-1,-1 }, dy[] = { 1,0,-1,0,1,-1,1,-1 };
int ddx[] = { -1,-2,1,-2,2,-1,2,1 }, ddy[] = { -2,-1,-2,1,-1,2,1,2 };

Vi v[200001];
int h[200001],pt[200001];
ll c[200001];
map<int,ll,greater<int>> M[200001];

int ind[200001],gn[200001],GN=1;
Vi st;
Vi group[200005];
bool chk[200005],fin[200005];
void merge(int next,int N){
	int &x=pt[next],&y=pt[N];
	if(M[x].size()>M[y].size())swap(x,y);
	for(auto [a,b]:M[x]){
		M[y][a]+=b;
	}
}
void dfs(int N){
	if(v[N].empty()){
		M[N][h[N]]=c[N];
		return;
	}
	if(gn[N]){
		for(int x:group[gn[N]]){
			chk[x]=1;
			for(int next:v[x]){
				if(!gn[next]){
					dfs(next);
					merge(next,N);
				}
			}
		}
		return;
	}
	for(int next:v[N]){
		dfs(next);
		merge(next,N);
	}
	int nn=pt[N];
	M[nn][h[N]]+=c[N];
	ll t=c[N];
	auto it=M[nn].upper_bound(h[N]);
	while(it!=M[nn].end()){
		if(it->Y<t){
			t-=it->Y;
			it=M[nn].erase(it);
		}else{
			it->Y-=t;
			break;
		}
	}
}
void dfs2(int N){
	st.pb(N);
	chk[N]=1;
	for(int next:v[N]){
		if(chk[next]){
			if(!fin[next]){
				int M=st.size();
				fdn(ii,M-1,0,1){
					gn[st[ii]]=GN;
					group[GN].pb(st[ii]);
					if(st[ii]==next)break;
				}
				GN++;
			}
		}
		else dfs2(next);
	}
	fin[N]=1;
	st.pop_back();
}
int main(){
	int n;
	scanf("%d",&n);
	iota(pt,pt+n+1,0);
	ll tot=0;
	fup(i,1,n,1){
		int x;
		scanf("%d%d%lld",&x,&h[i],&c[i]);
		tot+=c[i];
		if(i!=x){
			v[x].pb(i);
			ind[i]++;
		}
	}
	fup(i,1,n,1){
		if(!chk[i]){
			st.clear();
			dfs2(i);
		}
	}
	ll ans=0;
	MEM0(chk);
	fup(i,1,n,1){
		if(!chk[i] && (ind[i]==0 || gn[i])){
			dfs(i);
			if(ind[i]==0){
				for(auto [a,b]:M[pt[i]])ans+=b;
			}else{
				M[pt[i]][1000000007]+=0;
				VPll v1,v2;
				for(auto it=M[pt[i]].begin();it!=M[pt[i]].end();it++){
					v1.pb(*it);
				}
				reverse(ALL(v1));
				int N=v1.size();
				fdn(i,N-2,0,1)v1[i].Y+=v1[i+1].Y;
				//fup(i,0,N-1,1)printf("%lld %lld\n",v1[i].X,v1[i].Y);
				map<ll,ll> MM;
				for(int x:group[gn[i]]){
					MM[h[x]]+=c[x];
				}
				for(auto it=MM.begin();it!=MM.end();it++){
					v2.pb(*it);
				}
				ll tmp=0;
				bool ok=0;
				fup(i,0,(int)v2.size()-1,1){
					if(v2[i].X!=i+1){
						ok=1;
						int t=lower_bound(ALL(v1),mp((ll)i,-1ll))-v1.begin();
						tmp=max(tmp,v1[t].Y);
					}
					int t=lower_bound(ALL(v1),mp(v2[i].X,-1ll))-v1.begin();
					tmp=max(tmp,v1[t].Y+v2[i].Y);
				}
				if(!ok){
					int t=lower_bound(ALL(v1),mp((ll)v2.size(),-1ll))-v1.begin();
					tmp=max(tmp,v1[t].Y);
				}
				ans+=tmp;
			}
		}
	}
	printf("%lld\n",tot-ans);
}

Compilation message

worst_reporter2.cpp: In function 'void dfs2(int)':
worst_reporter2.cpp:11:30: warning: unnecessary parentheses in declaration of 'ii' [-Wparentheses]
   11 | #define fdn(i,a,b,c) for(int (i)=(a);(i)>=(b);(i)-=(c))
      |                              ^
worst_reporter2.cpp:101:5: note: in expansion of macro 'fdn'
  101 |     fdn(ii,M-1,0,1){
      |     ^~~
worst_reporter2.cpp: In function 'int main()':
worst_reporter2.cpp:10:30: warning: unnecessary parentheses in declaration of 'i' [-Wparentheses]
   10 | #define fup(i,a,b,c) for(int (i)=(a);(i)<=(b);(i)+=(c))
      |                              ^
worst_reporter2.cpp:119:2: note: in expansion of macro 'fup'
  119 |  fup(i,1,n,1){
      |  ^~~
worst_reporter2.cpp:10:30: warning: unnecessary parentheses in declaration of 'i' [-Wparentheses]
   10 | #define fup(i,a,b,c) for(int (i)=(a);(i)<=(b);(i)+=(c))
      |                              ^
worst_reporter2.cpp:128:2: note: in expansion of macro 'fup'
  128 |  fup(i,1,n,1){
      |  ^~~
worst_reporter2.cpp:10:30: warning: unnecessary parentheses in declaration of 'i' [-Wparentheses]
   10 | #define fup(i,a,b,c) for(int (i)=(a);(i)<=(b);(i)+=(c))
      |                              ^
worst_reporter2.cpp:136:2: note: in expansion of macro 'fup'
  136 |  fup(i,1,n,1){
      |  ^~~
worst_reporter2.cpp:11:30: warning: unnecessary parentheses in declaration of 'i' [-Wparentheses]
   11 | #define fdn(i,a,b,c) for(int (i)=(a);(i)>=(b);(i)-=(c))
      |                              ^
worst_reporter2.cpp:149:5: note: in expansion of macro 'fdn'
  149 |     fdn(i,N-2,0,1)v1[i].Y+=v1[i+1].Y;
      |     ^~~
worst_reporter2.cpp:10:30: warning: unnecessary parentheses in declaration of 'i' [-Wparentheses]
   10 | #define fup(i,a,b,c) for(int (i)=(a);(i)<=(b);(i)+=(c))
      |                              ^
worst_reporter2.cpp:160:5: note: in expansion of macro 'fup'
  160 |     fup(i,0,(int)v2.size()-1,1){
      |     ^~~
worst_reporter2.cpp:116:7: warning: ignoring return value of 'int scanf(const char*, ...)' declared with attribute 'warn_unused_result' [-Wunused-result]
  116 |  scanf("%d",&n);
      |  ~~~~~^~~~~~~~~
worst_reporter2.cpp:121:8: warning: ignoring return value of 'int scanf(const char*, ...)' declared with attribute 'warn_unused_result' [-Wunused-result]
  121 |   scanf("%d%d%lld",&x,&h[i],&c[i]);
      |   ~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~

Subtask #1
14.0 / 14.0

# 결과 실행 시간 메모리 Grader output
1 Correct 13 ms 19276 KB Output is correct
2 Correct 13 ms 19276 KB Output is correct
3 Correct 14 ms 19224 KB Output is correct
4 Correct 14 ms 19276 KB Output is correct
5 Correct 19 ms 20556 KB Output is correct
6 Correct 18 ms 20060 KB Output is correct
7 Correct 17 ms 19924 KB Output is correct
8 Correct 19 ms 20556 KB Output is correct
9 Correct 17 ms 20044 KB Output is correct
10 Correct 16 ms 19936 KB Output is correct
11 Correct 16 ms 19660 KB Output is correct
12 Correct 17 ms 20152 KB Output is correct
13 Correct 15 ms 20172 KB Output is correct
14 Correct 16 ms 19948 KB Output is correct
15 Correct 17 ms 19916 KB Output is correct
16 Correct 20 ms 20952 KB Output is correct
17 Correct 18 ms 20252 KB Output is correct
18 Correct 17 ms 19724 KB Output is correct
19 Correct 16 ms 20168 KB Output is correct
20 Correct 16 ms 19916 KB Output is correct
21 Correct 16 ms 19916 KB Output is correct
22 Correct 19 ms 20044 KB Output is correct
23 Correct 16 ms 19788 KB Output is correct
24 Correct 20 ms 20172 KB Output is correct
25 Correct 16 ms 20020 KB Output is correct
26 Correct 17 ms 20428 KB Output is correct
27 Correct 17 ms 20172 KB Output is correct
28 Correct 18 ms 20172 KB Output is correct
29 Correct 17 ms 20300 KB Output is correct
30 Correct 17 ms 20284 KB Output is correct
31 Correct 18 ms 20300 KB Output is correct

Subtask #2
65.0 / 65.0

# 결과 실행 시간 메모리 Grader output
1 Correct 13 ms 19276 KB Output is correct
2 Correct 13 ms 19276 KB Output is correct
3 Correct 14 ms 19224 KB Output is correct
4 Correct 14 ms 19276 KB Output is correct
5 Correct 19 ms 20556 KB Output is correct
6 Correct 18 ms 20060 KB Output is correct
7 Correct 17 ms 19924 KB Output is correct
8 Correct 19 ms 20556 KB Output is correct
9 Correct 17 ms 20044 KB Output is correct
10 Correct 16 ms 19936 KB Output is correct
11 Correct 16 ms 19660 KB Output is correct
12 Correct 17 ms 20152 KB Output is correct
13 Correct 15 ms 20172 KB Output is correct
14 Correct 16 ms 19948 KB Output is correct
15 Correct 17 ms 19916 KB Output is correct
16 Correct 20 ms 20952 KB Output is correct
17 Correct 18 ms 20252 KB Output is correct
18 Correct 17 ms 19724 KB Output is correct
19 Correct 16 ms 20168 KB Output is correct
20 Correct 16 ms 19916 KB Output is correct
21 Correct 16 ms 19916 KB Output is correct
22 Correct 19 ms 20044 KB Output is correct
23 Correct 16 ms 19788 KB Output is correct
24 Correct 20 ms 20172 KB Output is correct
25 Correct 16 ms 20020 KB Output is correct
26 Correct 17 ms 20428 KB Output is correct
27 Correct 17 ms 20172 KB Output is correct
28 Correct 18 ms 20172 KB Output is correct
29 Correct 17 ms 20300 KB Output is correct
30 Correct 17 ms 20284 KB Output is correct
31 Correct 18 ms 20300 KB Output is correct
32 Correct 20 ms 20484 KB Output is correct
33 Correct 415 ms 81348 KB Output is correct
34 Correct 335 ms 57028 KB Output is correct
35 Correct 408 ms 78876 KB Output is correct
36 Correct 333 ms 57048 KB Output is correct
37 Correct 228 ms 37996 KB Output is correct
38 Correct 211 ms 33680 KB Output is correct
39 Correct 179 ms 50152 KB Output is correct
40 Correct 168 ms 50208 KB Output is correct
41 Correct 131 ms 50192 KB Output is correct
42 Correct 171 ms 40396 KB Output is correct
43 Correct 165 ms 40380 KB Output is correct
44 Correct 356 ms 106784 KB Output is correct
45 Correct 251 ms 71224 KB Output is correct
46 Correct 122 ms 33608 KB Output is correct
47 Correct 276 ms 50332 KB Output is correct
48 Correct 146 ms 43412 KB Output is correct
49 Correct 123 ms 43332 KB Output is correct
50 Correct 291 ms 50068 KB Output is correct
51 Correct 128 ms 37516 KB Output is correct
52 Correct 328 ms 51000 KB Output is correct
53 Correct 145 ms 43860 KB Output is correct
54 Correct 202 ms 62580 KB Output is correct
55 Correct 271 ms 52764 KB Output is correct
56 Correct 213 ms 56464 KB Output is correct
57 Correct 200 ms 58660 KB Output is correct
58 Correct 210 ms 58976 KB Output is correct
59 Correct 216 ms 58948 KB Output is correct

Subtask #3
21.0 / 21.0

# 결과 실행 시간 메모리 Grader output
1 Correct 13 ms 19276 KB Output is correct
2 Correct 13 ms 19276 KB Output is correct
3 Correct 14 ms 19224 KB Output is correct
4 Correct 14 ms 19276 KB Output is correct
5 Correct 19 ms 20556 KB Output is correct
6 Correct 18 ms 20060 KB Output is correct
7 Correct 17 ms 19924 KB Output is correct
8 Correct 19 ms 20556 KB Output is correct
9 Correct 17 ms 20044 KB Output is correct
10 Correct 16 ms 19936 KB Output is correct
11 Correct 16 ms 19660 KB Output is correct
12 Correct 17 ms 20152 KB Output is correct
13 Correct 15 ms 20172 KB Output is correct
14 Correct 16 ms 19948 KB Output is correct
15 Correct 17 ms 19916 KB Output is correct
16 Correct 20 ms 20952 KB Output is correct
17 Correct 18 ms 20252 KB Output is correct
18 Correct 17 ms 19724 KB Output is correct
19 Correct 16 ms 20168 KB Output is correct
20 Correct 16 ms 19916 KB Output is correct
21 Correct 16 ms 19916 KB Output is correct
22 Correct 19 ms 20044 KB Output is correct
23 Correct 16 ms 19788 KB Output is correct
24 Correct 20 ms 20172 KB Output is correct
25 Correct 16 ms 20020 KB Output is correct
26 Correct 17 ms 20428 KB Output is correct
27 Correct 17 ms 20172 KB Output is correct
28 Correct 18 ms 20172 KB Output is correct
29 Correct 17 ms 20300 KB Output is correct
30 Correct 17 ms 20284 KB Output is correct
31 Correct 18 ms 20300 KB Output is correct
32 Correct 20 ms 20484 KB Output is correct
33 Correct 415 ms 81348 KB Output is correct
34 Correct 335 ms 57028 KB Output is correct
35 Correct 408 ms 78876 KB Output is correct
36 Correct 333 ms 57048 KB Output is correct
37 Correct 228 ms 37996 KB Output is correct
38 Correct 211 ms 33680 KB Output is correct
39 Correct 179 ms 50152 KB Output is correct
40 Correct 168 ms 50208 KB Output is correct
41 Correct 131 ms 50192 KB Output is correct
42 Correct 171 ms 40396 KB Output is correct
43 Correct 165 ms 40380 KB Output is correct
44 Correct 356 ms 106784 KB Output is correct
45 Correct 251 ms 71224 KB Output is correct
46 Correct 122 ms 33608 KB Output is correct
47 Correct 276 ms 50332 KB Output is correct
48 Correct 146 ms 43412 KB Output is correct
49 Correct 123 ms 43332 KB Output is correct
50 Correct 291 ms 50068 KB Output is correct
51 Correct 128 ms 37516 KB Output is correct
52 Correct 328 ms 51000 KB Output is correct
53 Correct 145 ms 43860 KB Output is correct
54 Correct 202 ms 62580 KB Output is correct
55 Correct 271 ms 52764 KB Output is correct
56 Correct 213 ms 56464 KB Output is correct
57 Correct 200 ms 58660 KB Output is correct
58 Correct 210 ms 58976 KB Output is correct
59 Correct 216 ms 58948 KB Output is correct
60 Correct 12 ms 19276 KB Output is correct
61 Correct 12 ms 19276 KB Output is correct
62 Correct 12 ms 19276 KB Output is correct
63 Correct 12 ms 19224 KB Output is correct
64 Correct 386 ms 71256 KB Output is correct
65 Correct 326 ms 52728 KB Output is correct
66 Correct 378 ms 69012 KB Output is correct
67 Correct 321 ms 52420 KB Output is correct
68 Correct 252 ms 38944 KB Output is correct
69 Correct 244 ms 35700 KB Output is correct
70 Correct 322 ms 60364 KB Output is correct
71 Correct 205 ms 44476 KB Output is correct
72 Correct 392 ms 70464 KB Output is correct
73 Correct 212 ms 54200 KB Output is correct
74 Correct 408 ms 63832 KB Output is correct
75 Correct 258 ms 46784 KB Output is correct
76 Correct 232 ms 46644 KB Output is correct
77 Correct 297 ms 64132 KB Output is correct
78 Correct 172 ms 47172 KB Output is correct
79 Correct 377 ms 79600 KB Output is correct
80 Correct 289 ms 58168 KB Output is correct
81 Correct 219 ms 47548 KB Output is correct
82 Correct 274 ms 70340 KB Output is correct
83 Correct 106 ms 37956 KB Output is correct
84 Correct 329 ms 62240 KB Output is correct
85 Correct 350 ms 62180 KB Output is correct
86 Correct 318 ms 62156 KB Output is correct
87 Correct 365 ms 62300 KB Output is correct
88 Correct 324 ms 62136 KB Output is correct