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답안 #550550

# 제출 시각 아이디 문제 언어 결과 실행 시간 메모리
550550 2022-04-18T13:15:21 Z krit3379 Power Plant (JOI20_power) C++17
100 / 100
 196 ms 29516 KB 
#include<bits/stdc++.h>
using namespace std;
#define N 200005

int dp[N],p[N],ans;
char s[N];
vector<int> g[N];

void dfs(int s,int f){
    int ma=0;
    for(auto x:g[s]){
        if(x==f)continue;
        dfs(x,s);
        dp[s]+=dp[x];
        ma=max(ma,dp[x]);
    }
    dp[s]-=p[s];
    dp[s]=max(dp[s],p[s]);
    ans=max({ans,ma+p[s],dp[s]});
}

int main(){
    int n,i,a,b;
    scanf("%d",&n);
    for(i=1;i<n;i++){
        scanf("%d %d",&a,&b);
        g[a].push_back(b);
        g[b].push_back(a);
    }
    scanf(" %s",s+1);
    for(i=1;i<=n;i++)p[i]=s[i]-'0';
    dfs(1,0);
    printf("%d",ans);
    return 0;
}

Compilation message

power.cpp: In function 'int main()':
power.cpp:24:10: warning: ignoring return value of 'int scanf(const char*, ...)' declared with attribute 'warn_unused_result' [-Wunused-result]
   24 |     scanf("%d",&n);
      |     ~~~~~^~~~~~~~~
power.cpp:26:14: warning: ignoring return value of 'int scanf(const char*, ...)' declared with attribute 'warn_unused_result' [-Wunused-result]
   26 |         scanf("%d %d",&a,&b);
      |         ~~~~~^~~~~~~~~~~~~~~
power.cpp:30:10: warning: ignoring return value of 'int scanf(const char*, ...)' declared with attribute 'warn_unused_result' [-Wunused-result]
   30 |     scanf(" %s",s+1);
      |     ~~~~~^~~~~~~~~~~

Subtask #1
6.0 / 6.0

# 결과 실행 시간 메모리 Grader output
1 Correct 3 ms 4948 KB Output is correct
2 Correct 2 ms 4948 KB Output is correct
3 Correct 2 ms 5008 KB Output is correct
4 Correct 3 ms 4948 KB Output is correct
5 Correct 3 ms 5012 KB Output is correct
6 Correct 3 ms 5016 KB Output is correct
7 Correct 3 ms 4948 KB Output is correct
8 Correct 4 ms 4948 KB Output is correct
9 Correct 3 ms 5012 KB Output is correct
10 Correct 4 ms 4948 KB Output is correct
11 Correct 4 ms 4924 KB Output is correct
12 Correct 3 ms 4948 KB Output is correct
13 Correct 3 ms 4948 KB Output is correct
14 Correct 4 ms 4984 KB Output is correct
15 Correct 2 ms 4948 KB Output is correct
16 Correct 3 ms 4948 KB Output is correct
17 Correct 3 ms 4948 KB Output is correct
18 Correct 3 ms 4948 KB Output is correct
19 Correct 3 ms 4948 KB Output is correct
20 Correct 3 ms 5012 KB Output is correct
21 Correct 4 ms 4948 KB Output is correct

Subtask #2
41.0 / 41.0

# 결과 실행 시간 메모리 Grader output
1 Correct 3 ms 4948 KB Output is correct
2 Correct 2 ms 4948 KB Output is correct
3 Correct 2 ms 5008 KB Output is correct
4 Correct 3 ms 4948 KB Output is correct
5 Correct 3 ms 5012 KB Output is correct
6 Correct 3 ms 5016 KB Output is correct
7 Correct 3 ms 4948 KB Output is correct
8 Correct 4 ms 4948 KB Output is correct
9 Correct 3 ms 5012 KB Output is correct
10 Correct 4 ms 4948 KB Output is correct
11 Correct 4 ms 4924 KB Output is correct
12 Correct 3 ms 4948 KB Output is correct
13 Correct 3 ms 4948 KB Output is correct
14 Correct 4 ms 4984 KB Output is correct
15 Correct 2 ms 4948 KB Output is correct
16 Correct 3 ms 4948 KB Output is correct
17 Correct 3 ms 4948 KB Output is correct
18 Correct 3 ms 4948 KB Output is correct
19 Correct 3 ms 4948 KB Output is correct
20 Correct 3 ms 5012 KB Output is correct
21 Correct 4 ms 4948 KB Output is correct
22 Correct 4 ms 5032 KB Output is correct
23 Correct 4 ms 5076 KB Output is correct
24 Correct 4 ms 5028 KB Output is correct
25 Correct 4 ms 5076 KB Output is correct
26 Correct 4 ms 5076 KB Output is correct
27 Correct 4 ms 5036 KB Output is correct
28 Correct 4 ms 5028 KB Output is correct
29 Correct 3 ms 5204 KB Output is correct
30 Correct 4 ms 5160 KB Output is correct
31 Correct 3 ms 5076 KB Output is correct
32 Correct 3 ms 5024 KB Output is correct
33 Correct 3 ms 5076 KB Output is correct
34 Correct 4 ms 5096 KB Output is correct
35 Correct 4 ms 5076 KB Output is correct
36 Correct 4 ms 5076 KB Output is correct
37 Correct 4 ms 5012 KB Output is correct
38 Correct 4 ms 5028 KB Output is correct
39 Correct 4 ms 5084 KB Output is correct
40 Correct 5 ms 5076 KB Output is correct
41 Correct 5 ms 5076 KB Output is correct
42 Correct 4 ms 5032 KB Output is correct
43 Correct 3 ms 5076 KB Output is correct
44 Correct 3 ms 5040 KB Output is correct
45 Correct 3 ms 5076 KB Output is correct
46 Correct 3 ms 5016 KB Output is correct
47 Correct 3 ms 5032 KB Output is correct
48 Correct 3 ms 5076 KB Output is correct
49 Correct 4 ms 5152 KB Output is correct
50 Correct 5 ms 5156 KB Output is correct
51 Correct 4 ms 5148 KB Output is correct
52 Correct 4 ms 5076 KB Output is correct
53 Correct 5 ms 5076 KB Output is correct
54 Correct 9 ms 5088 KB Output is correct
55 Correct 5 ms 5076 KB Output is correct
56 Correct 4 ms 5088 KB Output is correct
57 Correct 5 ms 5204 KB Output is correct
58 Correct 4 ms 5076 KB Output is correct
59 Correct 3 ms 5076 KB Output is correct
60 Correct 4 ms 5076 KB Output is correct
61 Correct 3 ms 5076 KB Output is correct
62 Correct 4 ms 5204 KB Output is correct
63 Correct 3 ms 5076 KB Output is correct

Subtask #3
53.0 / 53.0

# 결과 실행 시간 메모리 Grader output
1 Correct 3 ms 4948 KB Output is correct
2 Correct 2 ms 4948 KB Output is correct
3 Correct 2 ms 5008 KB Output is correct
4 Correct 3 ms 4948 KB Output is correct
5 Correct 3 ms 5012 KB Output is correct
6 Correct 3 ms 5016 KB Output is correct
7 Correct 3 ms 4948 KB Output is correct
8 Correct 4 ms 4948 KB Output is correct
9 Correct 3 ms 5012 KB Output is correct
10 Correct 4 ms 4948 KB Output is correct
11 Correct 4 ms 4924 KB Output is correct
12 Correct 3 ms 4948 KB Output is correct
13 Correct 3 ms 4948 KB Output is correct
14 Correct 4 ms 4984 KB Output is correct
15 Correct 2 ms 4948 KB Output is correct
16 Correct 3 ms 4948 KB Output is correct
17 Correct 3 ms 4948 KB Output is correct
18 Correct 3 ms 4948 KB Output is correct
19 Correct 3 ms 4948 KB Output is correct
20 Correct 3 ms 5012 KB Output is correct
21 Correct 4 ms 4948 KB Output is correct
22 Correct 4 ms 5032 KB Output is correct
23 Correct 4 ms 5076 KB Output is correct
24 Correct 4 ms 5028 KB Output is correct
25 Correct 4 ms 5076 KB Output is correct
26 Correct 4 ms 5076 KB Output is correct
27 Correct 4 ms 5036 KB Output is correct
28 Correct 4 ms 5028 KB Output is correct
29 Correct 3 ms 5204 KB Output is correct
30 Correct 4 ms 5160 KB Output is correct
31 Correct 3 ms 5076 KB Output is correct
32 Correct 3 ms 5024 KB Output is correct
33 Correct 3 ms 5076 KB Output is correct
34 Correct 4 ms 5096 KB Output is correct
35 Correct 4 ms 5076 KB Output is correct
36 Correct 4 ms 5076 KB Output is correct
37 Correct 4 ms 5012 KB Output is correct
38 Correct 4 ms 5028 KB Output is correct
39 Correct 4 ms 5084 KB Output is correct
40 Correct 5 ms 5076 KB Output is correct
41 Correct 5 ms 5076 KB Output is correct
42 Correct 4 ms 5032 KB Output is correct
43 Correct 3 ms 5076 KB Output is correct
44 Correct 3 ms 5040 KB Output is correct
45 Correct 3 ms 5076 KB Output is correct
46 Correct 3 ms 5016 KB Output is correct
47 Correct 3 ms 5032 KB Output is correct
48 Correct 3 ms 5076 KB Output is correct
49 Correct 4 ms 5152 KB Output is correct
50 Correct 5 ms 5156 KB Output is correct
51 Correct 4 ms 5148 KB Output is correct
52 Correct 4 ms 5076 KB Output is correct
53 Correct 5 ms 5076 KB Output is correct
54 Correct 9 ms 5088 KB Output is correct
55 Correct 5 ms 5076 KB Output is correct
56 Correct 4 ms 5088 KB Output is correct
57 Correct 5 ms 5204 KB Output is correct
58 Correct 4 ms 5076 KB Output is correct
59 Correct 3 ms 5076 KB Output is correct
60 Correct 4 ms 5076 KB Output is correct
61 Correct 3 ms 5076 KB Output is correct
62 Correct 4 ms 5204 KB Output is correct
63 Correct 3 ms 5076 KB Output is correct
64 Correct 160 ms 15872 KB Output is correct
65 Correct 156 ms 15848 KB Output is correct
66 Correct 131 ms 15752 KB Output is correct
67 Correct 155 ms 15812 KB Output is correct
68 Correct 173 ms 15824 KB Output is correct
69 Correct 141 ms 15788 KB Output is correct
70 Correct 149 ms 15824 KB Output is correct
71 Correct 152 ms 15828 KB Output is correct
72 Correct 132 ms 15732 KB Output is correct
73 Correct 168 ms 28452 KB Output is correct
74 Correct 147 ms 28272 KB Output is correct
75 Correct 177 ms 15652 KB Output is correct
76 Correct 146 ms 15692 KB Output is correct
77 Correct 134 ms 15728 KB Output is correct
78 Correct 161 ms 15652 KB Output is correct
79 Correct 162 ms 15724 KB Output is correct
80 Correct 162 ms 15616 KB Output is correct
81 Correct 113 ms 16032 KB Output is correct
82 Correct 137 ms 15844 KB Output is correct
83 Correct 172 ms 20836 KB Output is correct
84 Correct 162 ms 23200 KB Output is correct
85 Correct 154 ms 22704 KB Output is correct
86 Correct 149 ms 17104 KB Output is correct
87 Correct 148 ms 16588 KB Output is correct
88 Correct 123 ms 17060 KB Output is correct
89 Correct 159 ms 17084 KB Output is correct
90 Correct 140 ms 16844 KB Output is correct
91 Correct 134 ms 17100 KB Output is correct
92 Correct 143 ms 17356 KB Output is correct
93 Correct 160 ms 19704 KB Output is correct
94 Correct 122 ms 21440 KB Output is correct
95 Correct 127 ms 20092 KB Output is correct
96 Correct 123 ms 18448 KB Output is correct
97 Correct 153 ms 16808 KB Output is correct
98 Correct 112 ms 16328 KB Output is correct
99 Correct 126 ms 16208 KB Output is correct
100 Correct 130 ms 19380 KB Output is correct
101 Correct 180 ms 17264 KB Output is correct
102 Correct 127 ms 16596 KB Output is correct
103 Correct 127 ms 16460 KB Output is correct
104 Correct 99 ms 16604 KB Output is correct
105 Correct 196 ms 25268 KB Output is correct
106 Correct 81 ms 16364 KB Output is correct
107 Correct 83 ms 16412 KB Output is correct
108 Correct 167 ms 29168 KB Output is correct
109 Correct 109 ms 16672 KB Output is correct
110 Correct 149 ms 29516 KB Output is correct
111 Correct 125 ms 15740 KB Output is correct