답안 #496710

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
496710	2021-12-22T02:24:01 Z	jamezzz	Power Plant (JOI20_power)	C++17	100 / 100	164 ms	25088 KB

power

#include <bits/stdc++.h>
using namespace std;

#ifdef DEBUG
#define dbg(...) printf(__VA_ARGS__);
#define getchar_unlocked getchar
#else
#define dbg(...)
#endif
#define sf scanf
#define pf printf
#define fi first
#define se second
#define pb push_back
#define sz(x) (int)x.size()
#define mnto(x,y) x=min(x,(__typeof__(x))y)
#define mxto(x,y) x=max(x,(__typeof__(x))y)
#define INF 1023456789
#define LINF 1023456789123456789
#define all(x) x.begin(), x.end()
#define disc(x) sort(all(x));x.resize(unique(all(x))-x.begin());
typedef long long ll;
typedef long double ld;
typedef pair<int, int> ii;
typedef pair<ll, ll> pll;
typedef tuple<int, int, int> iii;
typedef tuple<int, int, int, int> iiii;
typedef vector<int> vi;
typedef vector<ii> vii;
typedef vector<pll> vll;
mt19937 rng(time(0));

#define mod 1000000007

inline int add(int a,int b){
	int r=a+b;
	while(r>=mod)r-=mod;
	while(r<0)r+=mod;
	return r;
}

inline int mult(int a,int b){
	return (int)(((ll)(a*b))%mod);
}

inline int rd(){
    int x=0;
    char ch=getchar_unlocked();
    while(ch<'0'||ch>'9')ch=getchar_unlocked();
    while(ch>='0'&&ch<='9'){
		x=(x<<3)+(x<<1)+ch-'0';
		ch=getchar_unlocked();
	}
    return x;
}

#define maxn 200005

int n,a,b,ans;
vi AL[maxn];
char s[maxn];

int dfs(int u,int p){
	int v0=0,v1=0,sm=0,mx=0;
	for(int v:AL[u]){
		if(v==p)continue;
		int tmp=dfs(v,u);
		sm+=max(tmp,0);
		mx=max(mx,tmp);
	}
	int t=(s[u-1]-'0');
	v0=max(sm-t,mx+t);//first one
	v1=max(sm-t,t);//>1 on top
	ans=max(ans,max(v0,v1));
	return v1;
}

int main(){
	sf("%d",&n);
	for(int i=1;i<n;++i){
		sf("%d%d",&a,&b);
		AL[a].pb(b);
		AL[b].pb(a);
	}
	sf(" %s",&s);
	dfs(1,1);
	pf("%d\n",ans);
}

Compilation message

power.cpp: In function 'int main()':
power.cpp:85:8: warning: format '%s' expects argument of type 'char*', but argument 2 has type 'char (*)[200005]' [-Wformat=]
   85 |  sf(" %s",&s);
      |       ~^  ~~
      |        |  |
      |        |  char (*)[200005]
      |        char*
power.cpp:79:4: warning: ignoring return value of 'int scanf(const char*, ...)' declared with attribute 'warn_unused_result' [-Wunused-result]
   79 |  sf("%d",&n);
      |    ^
power.cpp:81:5: warning: ignoring return value of 'int scanf(const char*, ...)' declared with attribute 'warn_unused_result' [-Wunused-result]
   81 |   sf("%d%d",&a,&b);
      |     ^
power.cpp:85:4: warning: ignoring return value of 'int scanf(const char*, ...)' declared with attribute 'warn_unused_result' [-Wunused-result]
   85 |  sf(" %s",&s);
      |    ^

Subtask #1
6.0 / 6.0

#	결과	실행 시간	메모리	Grader output
1	Correct	3 ms	4940 KB	Output is correct
2	Correct	4 ms	5000 KB	Output is correct
3	Correct	2 ms	4940 KB	Output is correct
4	Correct	3 ms	4940 KB	Output is correct
5	Correct	3 ms	5000 KB	Output is correct
6	Correct	2 ms	4940 KB	Output is correct
7	Correct	3 ms	5068 KB	Output is correct
8	Correct	2 ms	4940 KB	Output is correct
9	Correct	3 ms	4940 KB	Output is correct
10	Correct	3 ms	4984 KB	Output is correct
11	Correct	4 ms	4940 KB	Output is correct
12	Correct	2 ms	5004 KB	Output is correct
13	Correct	3 ms	4940 KB	Output is correct
14	Correct	2 ms	4940 KB	Output is correct
15	Correct	2 ms	4940 KB	Output is correct
16	Correct	2 ms	4940 KB	Output is correct
17	Correct	3 ms	4940 KB	Output is correct
18	Correct	3 ms	4940 KB	Output is correct
19	Correct	2 ms	4996 KB	Output is correct
20	Correct	3 ms	5000 KB	Output is correct
21	Correct	3 ms	4940 KB	Output is correct

Subtask #2
41.0 / 41.0

#	결과	실행 시간	메모리	Grader output
1	Correct	3 ms	4940 KB	Output is correct
2	Correct	4 ms	5000 KB	Output is correct
3	Correct	2 ms	4940 KB	Output is correct
4	Correct	3 ms	4940 KB	Output is correct
5	Correct	3 ms	5000 KB	Output is correct
6	Correct	2 ms	4940 KB	Output is correct
7	Correct	3 ms	5068 KB	Output is correct
8	Correct	2 ms	4940 KB	Output is correct
9	Correct	3 ms	4940 KB	Output is correct
10	Correct	3 ms	4984 KB	Output is correct
11	Correct	4 ms	4940 KB	Output is correct
12	Correct	2 ms	5004 KB	Output is correct
13	Correct	3 ms	4940 KB	Output is correct
14	Correct	2 ms	4940 KB	Output is correct
15	Correct	2 ms	4940 KB	Output is correct
16	Correct	2 ms	4940 KB	Output is correct
17	Correct	3 ms	4940 KB	Output is correct
18	Correct	3 ms	4940 KB	Output is correct
19	Correct	2 ms	4996 KB	Output is correct
20	Correct	3 ms	5000 KB	Output is correct
21	Correct	3 ms	4940 KB	Output is correct
22	Correct	4 ms	5068 KB	Output is correct
23	Correct	3 ms	5068 KB	Output is correct
24	Correct	4 ms	5068 KB	Output is correct
25	Correct	5 ms	5068 KB	Output is correct
26	Correct	4 ms	5008 KB	Output is correct
27	Correct	4 ms	5012 KB	Output is correct
28	Correct	5 ms	5068 KB	Output is correct
29	Correct	3 ms	5060 KB	Output is correct
30	Correct	3 ms	5068 KB	Output is correct
31	Correct	3 ms	5068 KB	Output is correct
32	Correct	3 ms	5068 KB	Output is correct
33	Correct	3 ms	5068 KB	Output is correct
34	Correct	3 ms	5068 KB	Output is correct
35	Correct	3 ms	5068 KB	Output is correct
36	Correct	3 ms	5068 KB	Output is correct
37	Correct	3 ms	4996 KB	Output is correct
38	Correct	5 ms	4988 KB	Output is correct
39	Correct	4 ms	5068 KB	Output is correct
40	Correct	3 ms	5068 KB	Output is correct
41	Correct	4 ms	5068 KB	Output is correct
42	Correct	3 ms	5068 KB	Output is correct
43	Correct	4 ms	4996 KB	Output is correct
44	Correct	3 ms	5068 KB	Output is correct
45	Correct	3 ms	5012 KB	Output is correct
46	Correct	4 ms	5012 KB	Output is correct
47	Correct	3 ms	5072 KB	Output is correct
48	Correct	3 ms	5068 KB	Output is correct
49	Correct	3 ms	5068 KB	Output is correct
50	Correct	5 ms	5068 KB	Output is correct
51	Correct	3 ms	5016 KB	Output is correct
52	Correct	4 ms	5032 KB	Output is correct
53	Correct	4 ms	5012 KB	Output is correct
54	Correct	3 ms	5068 KB	Output is correct
55	Correct	4 ms	5068 KB	Output is correct
56	Correct	3 ms	5068 KB	Output is correct
57	Correct	3 ms	5068 KB	Output is correct
58	Correct	3 ms	5068 KB	Output is correct
59	Correct	3 ms	5068 KB	Output is correct
60	Correct	3 ms	5068 KB	Output is correct
61	Correct	4 ms	5076 KB	Output is correct
62	Correct	5 ms	5140 KB	Output is correct
63	Correct	3 ms	5012 KB	Output is correct

Subtask #3
53.0 / 53.0

#	결과	실행 시간	메모리	Grader output
1	Correct	3 ms	4940 KB	Output is correct
2	Correct	4 ms	5000 KB	Output is correct
3	Correct	2 ms	4940 KB	Output is correct
4	Correct	3 ms	4940 KB	Output is correct
5	Correct	3 ms	5000 KB	Output is correct
6	Correct	2 ms	4940 KB	Output is correct
7	Correct	3 ms	5068 KB	Output is correct
8	Correct	2 ms	4940 KB	Output is correct
9	Correct	3 ms	4940 KB	Output is correct
10	Correct	3 ms	4984 KB	Output is correct
11	Correct	4 ms	4940 KB	Output is correct
12	Correct	2 ms	5004 KB	Output is correct
13	Correct	3 ms	4940 KB	Output is correct
14	Correct	2 ms	4940 KB	Output is correct
15	Correct	2 ms	4940 KB	Output is correct
16	Correct	2 ms	4940 KB	Output is correct
17	Correct	3 ms	4940 KB	Output is correct
18	Correct	3 ms	4940 KB	Output is correct
19	Correct	2 ms	4996 KB	Output is correct
20	Correct	3 ms	5000 KB	Output is correct
21	Correct	3 ms	4940 KB	Output is correct
22	Correct	4 ms	5068 KB	Output is correct
23	Correct	3 ms	5068 KB	Output is correct
24	Correct	4 ms	5068 KB	Output is correct
25	Correct	5 ms	5068 KB	Output is correct
26	Correct	4 ms	5008 KB	Output is correct
27	Correct	4 ms	5012 KB	Output is correct
28	Correct	5 ms	5068 KB	Output is correct
29	Correct	3 ms	5060 KB	Output is correct
30	Correct	3 ms	5068 KB	Output is correct
31	Correct	3 ms	5068 KB	Output is correct
32	Correct	3 ms	5068 KB	Output is correct
33	Correct	3 ms	5068 KB	Output is correct
34	Correct	3 ms	5068 KB	Output is correct
35	Correct	3 ms	5068 KB	Output is correct
36	Correct	3 ms	5068 KB	Output is correct
37	Correct	3 ms	4996 KB	Output is correct
38	Correct	5 ms	4988 KB	Output is correct
39	Correct	4 ms	5068 KB	Output is correct
40	Correct	3 ms	5068 KB	Output is correct
41	Correct	4 ms	5068 KB	Output is correct
42	Correct	3 ms	5068 KB	Output is correct
43	Correct	4 ms	4996 KB	Output is correct
44	Correct	3 ms	5068 KB	Output is correct
45	Correct	3 ms	5012 KB	Output is correct
46	Correct	4 ms	5012 KB	Output is correct
47	Correct	3 ms	5072 KB	Output is correct
48	Correct	3 ms	5068 KB	Output is correct
49	Correct	3 ms	5068 KB	Output is correct
50	Correct	5 ms	5068 KB	Output is correct
51	Correct	3 ms	5016 KB	Output is correct
52	Correct	4 ms	5032 KB	Output is correct
53	Correct	4 ms	5012 KB	Output is correct
54	Correct	3 ms	5068 KB	Output is correct
55	Correct	4 ms	5068 KB	Output is correct
56	Correct	3 ms	5068 KB	Output is correct
57	Correct	3 ms	5068 KB	Output is correct
58	Correct	3 ms	5068 KB	Output is correct
59	Correct	3 ms	5068 KB	Output is correct
60	Correct	3 ms	5068 KB	Output is correct
61	Correct	4 ms	5076 KB	Output is correct
62	Correct	5 ms	5140 KB	Output is correct
63	Correct	3 ms	5012 KB	Output is correct
64	Correct	126 ms	14220 KB	Output is correct
65	Correct	133 ms	14208 KB	Output is correct
66	Correct	141 ms	14152 KB	Output is correct
67	Correct	118 ms	14200 KB	Output is correct
68	Correct	131 ms	14244 KB	Output is correct
69	Correct	136 ms	14196 KB	Output is correct
70	Correct	126 ms	14240 KB	Output is correct
71	Correct	145 ms	14168 KB	Output is correct
72	Correct	150 ms	14288 KB	Output is correct
73	Correct	137 ms	24252 KB	Output is correct
74	Correct	154 ms	24440 KB	Output is correct
75	Correct	140 ms	14116 KB	Output is correct
76	Correct	132 ms	14072 KB	Output is correct
77	Correct	144 ms	14048 KB	Output is correct
78	Correct	151 ms	14132 KB	Output is correct
79	Correct	130 ms	14064 KB	Output is correct
80	Correct	116 ms	14096 KB	Output is correct
81	Correct	120 ms	14492 KB	Output is correct
82	Correct	136 ms	14292 KB	Output is correct
83	Correct	144 ms	18316 KB	Output is correct
84	Correct	138 ms	20024 KB	Output is correct
85	Correct	131 ms	19748 KB	Output is correct
86	Correct	118 ms	15300 KB	Output is correct
87	Correct	126 ms	14768 KB	Output is correct
88	Correct	123 ms	15248 KB	Output is correct
89	Correct	107 ms	15284 KB	Output is correct
90	Correct	129 ms	15112 KB	Output is correct
91	Correct	143 ms	15440 KB	Output is correct
92	Correct	129 ms	15612 KB	Output is correct
93	Correct	119 ms	17472 KB	Output is correct
94	Correct	119 ms	18740 KB	Output is correct
95	Correct	106 ms	17920 KB	Output is correct
96	Correct	109 ms	16396 KB	Output is correct
97	Correct	129 ms	15088 KB	Output is correct
98	Correct	109 ms	14812 KB	Output is correct
99	Correct	133 ms	14532 KB	Output is correct
100	Correct	130 ms	17180 KB	Output is correct
101	Correct	142 ms	15416 KB	Output is correct
102	Correct	116 ms	14824 KB	Output is correct
103	Correct	117 ms	14796 KB	Output is correct
104	Correct	92 ms	15012 KB	Output is correct
105	Correct	164 ms	21752 KB	Output is correct
106	Correct	81 ms	14736 KB	Output is correct
107	Correct	88 ms	14760 KB	Output is correct
108	Correct	150 ms	24928 KB	Output is correct
109	Correct	78 ms	14988 KB	Output is correct
110	Correct	158 ms	25088 KB	Output is correct
111	Correct	127 ms	14140 KB	Output is correct

답안 #496710

Compilation message

Subtask #1 6.0 / 6.0

Subtask #2 41.0 / 41.0

Subtask #3 53.0 / 53.0

Subtask #1
6.0 / 6.0

Subtask #2
41.0 / 41.0

Subtask #3
53.0 / 53.0