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답안 #291497

# 제출 시각 아이디 문제 언어 결과 실행 시간 메모리
291497 2020-09-05T12:10:17 Z TadijaSebez Wild Boar (JOI18_wild_boar) C++11
100 / 100
 8440 ms 336304 KB 
#include <bits/stdc++.h>
using namespace std;
#define pii pair<int,int>
#define pb push_back
#define ll long long
const int N=2005;
const int M=200050;
const int C=5;
const ll inf=4e18;
struct path{
	int u,v;ll cost;
	path(int a=0,int b=0,ll c=inf):u(a),v(b),cost(c){}
};
bool operator < (path a,path b){return a.cost>b.cost;}
path dist[N][N][C];
bool push(path tmp[C],path now,int o=C){
	int i,c1=0,c2=0;
	for(i=0;i<o&&tmp[i].cost!=inf;i++){
		if(tmp[i].u==now.u&&tmp[i].v==now.v)return 0;
		c1+=tmp[i].u==now.u;
		c2+=tmp[i].v==now.v;
	}
	if(c1>1||c2>1||i==C)return 0;
	if(tmp[i]<now)tmp[i]=now;
	return 1;
}
vector<pii> E[N];
int ls[M],rs[M],tsz,root;
path node[M][C];
void pull(int c){
	for(int i=0;i<C;i++){
		node[c][i]=path();
		for(int j=0;j<C;j++)
			for(int k=0;k<C;k++)
				if(node[ls[c]][j].v!=node[rs[c]][k].u)
					push(node[c],path(node[ls[c]][j].u,node[rs[c]][k].v,node[ls[c]][j].cost+node[rs[c]][k].cost),i);
	}
}
int x[M];
void Set(int&c,int ss,int se,int qi){
	if(!c)c=++tsz;
	if(ss==se){
		for(int i=0;i<C;i++)node[c][i]=dist[x[ss]][x[ss+1]][i];
		return;
	}
	int mid=ss+se>>1;
	if(qi<=mid)Set(ls[c],ss,mid,qi);
	else Set(rs[c],mid+1,se,qi);
	pull(c);
}
int main(){
	int n,m,t,l;
	scanf("%i %i %i %i",&n,&m,&t,&l);
	for(int i=1,u,v,w;i<=m;i++)scanf("%i %i %i",&u,&v,&w),E[u].pb({v,w}),E[v].pb({u,w});
	for(int u=1;u<=n;u++){
		priority_queue<pair<path,int>> pq;
		for(auto e:E[u])pq.push({path(e.first,u,e.second),e.first});
		while(pq.size()){
			pair<path,int> now=pq.top();
			pq.pop();
			if(!push(dist[u][now.second],now.first))continue;
			for(auto e:E[now.second])if(e.first!=now.first.v)
				pq.push({path(now.first.u,now.second,now.first.cost+e.second),e.first});
		}
	}
	for(int i=1;i<=l;i++)scanf("%i",&x[i]);
	for(int i=1;i<l;i++)Set(root,1,l-1,i);
	while(t--){
		int i,y;
		scanf("%i %i",&i,&y);
		x[i]=y;
		if(i!=1)Set(root,1,l-1,i-1);
		if(i!=l)Set(root,1,l-1,i);
		ll ans=node[root][0].cost;
		printf("%lld\n",ans<inf?ans:-1);
	}
	return 0;
}

Compilation message

wild_boar.cpp: In function 'void Set(int&, int, int, int)':
wild_boar.cpp:46:12: warning: suggest parentheses around '+' inside '>>' [-Wparentheses]
   46 |  int mid=ss+se>>1;
      |          ~~^~~
wild_boar.cpp: In function 'int main()':
wild_boar.cpp:53:7: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
   53 |  scanf("%i %i %i %i",&n,&m,&t,&l);
      |  ~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~
wild_boar.cpp:54:34: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
   54 |  for(int i=1,u,v,w;i<=m;i++)scanf("%i %i %i",&u,&v,&w),E[u].pb({v,w}),E[v].pb({u,w});
      |                             ~~~~~^~~~~~~~~~~~~~~~~~~~~
wild_boar.cpp:66:28: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
   66 |  for(int i=1;i<=l;i++)scanf("%i",&x[i]);
      |                       ~~~~~^~~~~~~~~~~~
wild_boar.cpp:70:8: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
   70 |   scanf("%i %i",&i,&y);
      |   ~~~~~^~~~~~~~~~~~~~~

Subtask #1
12.0 / 12.0

# 결과 실행 시간 메모리 Grader output
1 Correct 191 ms 330744 KB Output is correct
2 Correct 192 ms 330772 KB Output is correct
3 Correct 188 ms 330744 KB Output is correct
4 Correct 191 ms 330872 KB Output is correct
5 Correct 191 ms 330744 KB Output is correct
6 Correct 189 ms 330744 KB Output is correct
7 Correct 189 ms 330744 KB Output is correct
8 Correct 191 ms 330744 KB Output is correct
9 Correct 191 ms 330744 KB Output is correct
10 Correct 194 ms 330744 KB Output is correct
11 Correct 192 ms 330744 KB Output is correct
12 Correct 194 ms 330744 KB Output is correct
13 Correct 188 ms 330748 KB Output is correct
14 Correct 193 ms 330744 KB Output is correct
15 Correct 191 ms 330744 KB Output is correct
16 Correct 195 ms 330744 KB Output is correct
17 Correct 192 ms 330872 KB Output is correct
18 Correct 192 ms 330744 KB Output is correct
19 Correct 194 ms 330892 KB Output is correct
20 Correct 188 ms 330744 KB Output is correct
21 Correct 190 ms 330688 KB Output is correct
22 Correct 188 ms 330872 KB Output is correct
23 Correct 188 ms 330744 KB Output is correct
24 Correct 188 ms 330744 KB Output is correct
25 Correct 189 ms 330732 KB Output is correct

Subtask #2
35.0 / 35.0

# 결과 실행 시간 메모리 Grader output
1 Correct 191 ms 330744 KB Output is correct
2 Correct 192 ms 330772 KB Output is correct
3 Correct 188 ms 330744 KB Output is correct
4 Correct 191 ms 330872 KB Output is correct
5 Correct 191 ms 330744 KB Output is correct
6 Correct 189 ms 330744 KB Output is correct
7 Correct 189 ms 330744 KB Output is correct
8 Correct 191 ms 330744 KB Output is correct
9 Correct 191 ms 330744 KB Output is correct
10 Correct 194 ms 330744 KB Output is correct
11 Correct 192 ms 330744 KB Output is correct
12 Correct 194 ms 330744 KB Output is correct
13 Correct 188 ms 330748 KB Output is correct
14 Correct 193 ms 330744 KB Output is correct
15 Correct 191 ms 330744 KB Output is correct
16 Correct 195 ms 330744 KB Output is correct
17 Correct 192 ms 330872 KB Output is correct
18 Correct 192 ms 330744 KB Output is correct
19 Correct 194 ms 330892 KB Output is correct
20 Correct 188 ms 330744 KB Output is correct
21 Correct 190 ms 330688 KB Output is correct
22 Correct 188 ms 330872 KB Output is correct
23 Correct 188 ms 330744 KB Output is correct
24 Correct 188 ms 330744 KB Output is correct
25 Correct 189 ms 330732 KB Output is correct
26 Correct 191 ms 330744 KB Output is correct
27 Correct 889 ms 332920 KB Output is correct
28 Correct 854 ms 333188 KB Output is correct
29 Correct 1298 ms 333176 KB Output is correct
30 Correct 1282 ms 332920 KB Output is correct
31 Correct 1269 ms 332976 KB Output is correct
32 Correct 1279 ms 333048 KB Output is correct
33 Correct 1299 ms 333112 KB Output is correct
34 Correct 1331 ms 333056 KB Output is correct
35 Correct 1277 ms 332920 KB Output is correct
36 Correct 1271 ms 332920 KB Output is correct
37 Correct 1343 ms 333224 KB Output is correct
38 Correct 1295 ms 333048 KB Output is correct
39 Correct 1290 ms 332920 KB Output is correct
40 Correct 1314 ms 333244 KB Output is correct
41 Correct 1333 ms 333012 KB Output is correct
42 Correct 1268 ms 332924 KB Output is correct
43 Correct 1306 ms 333096 KB Output is correct
44 Correct 1273 ms 333036 KB Output is correct
45 Correct 1002 ms 333320 KB Output is correct

Subtask #3
15.0 / 15.0

# 결과 실행 시간 메모리 Grader output
1 Correct 191 ms 330744 KB Output is correct
2 Correct 192 ms 330772 KB Output is correct
3 Correct 188 ms 330744 KB Output is correct
4 Correct 191 ms 330872 KB Output is correct
5 Correct 191 ms 330744 KB Output is correct
6 Correct 189 ms 330744 KB Output is correct
7 Correct 189 ms 330744 KB Output is correct
8 Correct 191 ms 330744 KB Output is correct
9 Correct 191 ms 330744 KB Output is correct
10 Correct 194 ms 330744 KB Output is correct
11 Correct 192 ms 330744 KB Output is correct
12 Correct 194 ms 330744 KB Output is correct
13 Correct 188 ms 330748 KB Output is correct
14 Correct 193 ms 330744 KB Output is correct
15 Correct 191 ms 330744 KB Output is correct
16 Correct 195 ms 330744 KB Output is correct
17 Correct 192 ms 330872 KB Output is correct
18 Correct 192 ms 330744 KB Output is correct
19 Correct 194 ms 330892 KB Output is correct
20 Correct 188 ms 330744 KB Output is correct
21 Correct 190 ms 330688 KB Output is correct
22 Correct 188 ms 330872 KB Output is correct
23 Correct 188 ms 330744 KB Output is correct
24 Correct 188 ms 330744 KB Output is correct
25 Correct 189 ms 330732 KB Output is correct
26 Correct 191 ms 330744 KB Output is correct
27 Correct 889 ms 332920 KB Output is correct
28 Correct 854 ms 333188 KB Output is correct
29 Correct 1298 ms 333176 KB Output is correct
30 Correct 1282 ms 332920 KB Output is correct
31 Correct 1269 ms 332976 KB Output is correct
32 Correct 1279 ms 333048 KB Output is correct
33 Correct 1299 ms 333112 KB Output is correct
34 Correct 1331 ms 333056 KB Output is correct
35 Correct 1277 ms 332920 KB Output is correct
36 Correct 1271 ms 332920 KB Output is correct
37 Correct 1343 ms 333224 KB Output is correct
38 Correct 1295 ms 333048 KB Output is correct
39 Correct 1290 ms 332920 KB Output is correct
40 Correct 1314 ms 333244 KB Output is correct
41 Correct 1333 ms 333012 KB Output is correct
42 Correct 1268 ms 332924 KB Output is correct
43 Correct 1306 ms 333096 KB Output is correct
44 Correct 1273 ms 333036 KB Output is correct
45 Correct 1002 ms 333320 KB Output is correct
46 Correct 325 ms 330872 KB Output is correct
47 Correct 2908 ms 333136 KB Output is correct
48 Correct 3404 ms 333156 KB Output is correct
49 Correct 3672 ms 333296 KB Output is correct
50 Correct 3713 ms 333048 KB Output is correct
51 Correct 3688 ms 333072 KB Output is correct
52 Correct 3928 ms 333428 KB Output is correct
53 Correct 3893 ms 333576 KB Output is correct
54 Correct 3889 ms 333388 KB Output is correct
55 Correct 3898 ms 333448 KB Output is correct
56 Correct 3953 ms 333516 KB Output is correct
57 Correct 3990 ms 333464 KB Output is correct
58 Correct 3940 ms 333456 KB Output is correct
59 Correct 3922 ms 333672 KB Output is correct
60 Correct 3862 ms 333380 KB Output is correct
61 Correct 3790 ms 333356 KB Output is correct
62 Correct 3672 ms 333320 KB Output is correct
63 Correct 3547 ms 333432 KB Output is correct
64 Correct 1721 ms 333432 KB Output is correct
65 Correct 1728 ms 333460 KB Output is correct

Subtask #4
38.0 / 38.0

# 결과 실행 시간 메모리 Grader output
1 Correct 191 ms 330744 KB Output is correct
2 Correct 192 ms 330772 KB Output is correct
3 Correct 188 ms 330744 KB Output is correct
4 Correct 191 ms 330872 KB Output is correct
5 Correct 191 ms 330744 KB Output is correct
6 Correct 189 ms 330744 KB Output is correct
7 Correct 189 ms 330744 KB Output is correct
8 Correct 191 ms 330744 KB Output is correct
9 Correct 191 ms 330744 KB Output is correct
10 Correct 194 ms 330744 KB Output is correct
11 Correct 192 ms 330744 KB Output is correct
12 Correct 194 ms 330744 KB Output is correct
13 Correct 188 ms 330748 KB Output is correct
14 Correct 193 ms 330744 KB Output is correct
15 Correct 191 ms 330744 KB Output is correct
16 Correct 195 ms 330744 KB Output is correct
17 Correct 192 ms 330872 KB Output is correct
18 Correct 192 ms 330744 KB Output is correct
19 Correct 194 ms 330892 KB Output is correct
20 Correct 188 ms 330744 KB Output is correct
21 Correct 190 ms 330688 KB Output is correct
22 Correct 188 ms 330872 KB Output is correct
23 Correct 188 ms 330744 KB Output is correct
24 Correct 188 ms 330744 KB Output is correct
25 Correct 189 ms 330732 KB Output is correct
26 Correct 191 ms 330744 KB Output is correct
27 Correct 889 ms 332920 KB Output is correct
28 Correct 854 ms 333188 KB Output is correct
29 Correct 1298 ms 333176 KB Output is correct
30 Correct 1282 ms 332920 KB Output is correct
31 Correct 1269 ms 332976 KB Output is correct
32 Correct 1279 ms 333048 KB Output is correct
33 Correct 1299 ms 333112 KB Output is correct
34 Correct 1331 ms 333056 KB Output is correct
35 Correct 1277 ms 332920 KB Output is correct
36 Correct 1271 ms 332920 KB Output is correct
37 Correct 1343 ms 333224 KB Output is correct
38 Correct 1295 ms 333048 KB Output is correct
39 Correct 1290 ms 332920 KB Output is correct
40 Correct 1314 ms 333244 KB Output is correct
41 Correct 1333 ms 333012 KB Output is correct
42 Correct 1268 ms 332924 KB Output is correct
43 Correct 1306 ms 333096 KB Output is correct
44 Correct 1273 ms 333036 KB Output is correct
45 Correct 1002 ms 333320 KB Output is correct
46 Correct 325 ms 330872 KB Output is correct
47 Correct 2908 ms 333136 KB Output is correct
48 Correct 3404 ms 333156 KB Output is correct
49 Correct 3672 ms 333296 KB Output is correct
50 Correct 3713 ms 333048 KB Output is correct
51 Correct 3688 ms 333072 KB Output is correct
52 Correct 3928 ms 333428 KB Output is correct
53 Correct 3893 ms 333576 KB Output is correct
54 Correct 3889 ms 333388 KB Output is correct
55 Correct 3898 ms 333448 KB Output is correct
56 Correct 3953 ms 333516 KB Output is correct
57 Correct 3990 ms 333464 KB Output is correct
58 Correct 3940 ms 333456 KB Output is correct
59 Correct 3922 ms 333672 KB Output is correct
60 Correct 3862 ms 333380 KB Output is correct
61 Correct 3790 ms 333356 KB Output is correct
62 Correct 3672 ms 333320 KB Output is correct
63 Correct 3547 ms 333432 KB Output is correct
64 Correct 1721 ms 333432 KB Output is correct
65 Correct 1728 ms 333460 KB Output is correct
66 Correct 1247 ms 332920 KB Output is correct
67 Correct 997 ms 331844 KB Output is correct
68 Correct 849 ms 331000 KB Output is correct
69 Correct 1509 ms 331844 KB Output is correct
70 Correct 3068 ms 334528 KB Output is correct
71 Correct 7436 ms 335564 KB Output is correct
72 Correct 7898 ms 335556 KB Output is correct
73 Correct 8248 ms 336040 KB Output is correct
74 Correct 8368 ms 336268 KB Output is correct
75 Correct 8283 ms 336184 KB Output is correct
76 Correct 8173 ms 335536 KB Output is correct
77 Correct 7862 ms 335640 KB Output is correct
78 Correct 6922 ms 335440 KB Output is correct
79 Correct 8278 ms 336220 KB Output is correct
80 Correct 8325 ms 336264 KB Output is correct
81 Correct 8440 ms 335844 KB Output is correct
82 Correct 8064 ms 335928 KB Output is correct
83 Correct 8287 ms 335532 KB Output is correct
84 Correct 7548 ms 335844 KB Output is correct
85 Correct 5174 ms 336304 KB Output is correct