Submission #8461341
Source Code Expand
#include <iostream> #include <bits/stdc++.h> using namespace std; const int MAXN =3e5+5; set<int> v1[MAXN]; int val[MAXN]; int ans; int mx; int root; int dfs(int curr,int par){ int mx1 = 0; int mx2= 0; for(int x:v1[curr]){ if(x!=par){ int currval = dfs(x,curr); if(currval>=mx1){ mx2 = mx1; mx1 = currval; }else if(currval>mx2){ mx2 = currval; } } } mx = max(mx,val[curr]+mx1+mx2); return val[curr]+mx1; } int main(){ string s; int n; cin>>n; for(int i=1;i<n;i++){ int x,y; cin>>x>>y; v1[x].insert(y); v1[y].insert(x); } cin>>s; s = " "+s; for(int i=1;i<=n;i++){ val[i] = s[i] == 'W'; ans+=val[i]; } if(ans == 0){ cout<<0<<endl; return 0; } if(ans == 1){ cout<<1<<endl; return 0; } queue<int> q1; for(int i=1;i<=n;i++){ if(v1[i].size() == 1){ q1.push(i); } } while(q1.size()){ int x= q1.front(); q1.pop(); if(val[x]==0){ val[x] = 1000; int next = *v1[x].begin(); v1[next].erase(x); if(v1[next].size() == 1){ q1.push(next); } } } ans = 0; for(int i=1;i<=n;i++){ if(val[i]!=1000){ if(val[i] == 0 && v1[i].size()%2 ==0){ val[i] = 0; }else if(val[i] == 1 && v1[i].size()%2 ==1 ){ val[i] = 0; }else{ val[i] = 1; } ans+=2+val[i]; root = i; } } ans-=2; dfs(root,-1); cout<<ans - (2*mx)<<endl; }
Submission Info
Submission Time | |
---|---|
Task | F - Monochrome Cat |
User | BRCode |
Language | C++14 (GCC 5.4.1) |
Score | 800 |
Code Size | 1880 Byte |
Status | AC |
Exec Time | 127 ms |
Memory | 31740 KB |
Judge Result
Set Name | Sample | All | ||||
---|---|---|---|---|---|---|
Score / Max Score | 0 / 0 | 800 / 800 | ||||
Status |
|
|
Set Name | Test Cases |
---|---|
Sample | 0_000.txt, 0_001.txt, 0_002.txt, 0_003.txt |
All | 0_000.txt, 0_001.txt, 0_002.txt, 0_003.txt, 1_003.txt, 1_004.txt, 1_005.txt, 1_006.txt, 1_007.txt, 1_008.txt, 1_009.txt, 1_010.txt, 1_011.txt, 1_012.txt, 1_013.txt, 1_014.txt, 1_015.txt, 1_016.txt, 1_017.txt, 1_018.txt, 1_019.txt, 1_020.txt, 1_021.txt, 1_022.txt, 1_023.txt, 1_024.txt, 1_025.txt, 1_026.txt, 1_027.txt, 1_028.txt, 1_029.txt, 1_030.txt, 1_031.txt, 1_032.txt, 1_033.txt, 1_034.txt, 1_035.txt, 1_036.txt, 1_037.txt, 1_038.txt, 1_039.txt, 1_040.txt, 1_041.txt, 1_042.txt, 1_043.txt, 1_044.txt, 1_045.txt, 1_046.txt, 1_047.txt, 1_048.txt, 1_049.txt, 1_050.txt, 1_051.txt, 1_052.txt, 1_053.txt, 1_054.txt, 1_055.txt, 1_056.txt, 1_057.txt, 1_058.txt, 1_059.txt, 1_060.txt, 1_061.txt, 1_062.txt, 1_063.txt, 1_064.txt, 1_065.txt, 1_066.txt, 1_067.txt, 1_068.txt, 1_069.txt, 1_070.txt, 1_071.txt, 1_072.txt, 1_073.txt, 1_074.txt, 1_075.txt, 1_076.txt, 1_077.txt, 1_078.txt, 1_079.txt, 1_080.txt, 1_081.txt, 1_082.txt, 1_083.txt, 1_084.txt, 1_085.txt, 1_086.txt, 1_087.txt, 1_088.txt, 1_089.txt, 1_090.txt, 1_091.txt, 1_092.txt, 1_093.txt, 1_094.txt, 1_095.txt, 1_096.txt, 1_097.txt, 1_098.txt, 1_099.txt, 1_100.txt, 1_101.txt, 1_102.txt, 1_103.txt, 1_104.txt, 1_105.txt, 1_106.txt, 1_107.txt, 1_108.txt, 1_109.txt, 1_110.txt, 1_111.txt, 1_112.txt, 1_113.txt, 1_114.txt, 1_115.txt, 1_116.txt |
Case Name | Status | Exec Time | Memory |
---|---|---|---|
0_000.txt | AC | 12 ms | 14844 KB |
0_001.txt | AC | 6 ms | 14336 KB |
0_002.txt | AC | 6 ms | 14336 KB |
0_003.txt | AC | 6 ms | 14336 KB |
1_003.txt | AC | 6 ms | 14336 KB |
1_004.txt | AC | 6 ms | 14336 KB |
1_005.txt | AC | 6 ms | 14336 KB |
1_006.txt | AC | 6 ms | 14336 KB |
1_007.txt | AC | 6 ms | 14336 KB |
1_008.txt | AC | 6 ms | 14336 KB |
1_009.txt | AC | 6 ms | 14336 KB |
1_010.txt | AC | 6 ms | 14336 KB |
1_011.txt | AC | 6 ms | 14336 KB |
1_012.txt | AC | 6 ms | 14336 KB |
1_013.txt | AC | 6 ms | 14336 KB |
1_014.txt | AC | 6 ms | 14336 KB |
1_015.txt | AC | 6 ms | 14336 KB |
1_016.txt | AC | 6 ms | 14336 KB |
1_017.txt | AC | 6 ms | 14336 KB |
1_018.txt | AC | 6 ms | 14336 KB |
1_019.txt | AC | 6 ms | 14336 KB |
1_020.txt | AC | 6 ms | 14336 KB |
1_021.txt | AC | 6 ms | 14336 KB |
1_022.txt | AC | 6 ms | 14336 KB |
1_023.txt | AC | 6 ms | 14336 KB |
1_024.txt | AC | 6 ms | 14336 KB |
1_025.txt | AC | 6 ms | 14336 KB |
1_026.txt | AC | 6 ms | 14336 KB |
1_027.txt | AC | 6 ms | 14336 KB |
1_028.txt | AC | 6 ms | 14336 KB |
1_029.txt | AC | 6 ms | 14336 KB |
1_030.txt | AC | 6 ms | 14336 KB |
1_031.txt | AC | 6 ms | 14336 KB |
1_032.txt | AC | 6 ms | 14336 KB |
1_033.txt | AC | 6 ms | 14336 KB |
1_034.txt | AC | 6 ms | 14336 KB |
1_035.txt | AC | 6 ms | 14336 KB |
1_036.txt | AC | 6 ms | 14336 KB |
1_037.txt | AC | 6 ms | 14336 KB |
1_038.txt | AC | 6 ms | 14336 KB |
1_039.txt | AC | 6 ms | 14336 KB |
1_040.txt | AC | 6 ms | 14336 KB |
1_041.txt | AC | 7 ms | 14336 KB |
1_042.txt | AC | 6 ms | 14336 KB |
1_043.txt | AC | 7 ms | 14336 KB |
1_044.txt | AC | 6 ms | 14336 KB |
1_045.txt | AC | 38 ms | 19328 KB |
1_046.txt | AC | 45 ms | 20608 KB |
1_047.txt | AC | 88 ms | 24188 KB |
1_048.txt | AC | 69 ms | 21884 KB |
1_049.txt | AC | 71 ms | 24828 KB |
1_050.txt | AC | 68 ms | 23936 KB |
1_051.txt | AC | 88 ms | 22140 KB |
1_052.txt | AC | 25 ms | 16256 KB |
1_053.txt | AC | 97 ms | 22908 KB |
1_054.txt | AC | 40 ms | 17792 KB |
1_055.txt | AC | 87 ms | 22012 KB |
1_056.txt | AC | 54 ms | 18944 KB |
1_057.txt | AC | 8 ms | 14464 KB |
1_058.txt | AC | 49 ms | 20608 KB |
1_059.txt | AC | 35 ms | 17792 KB |
1_060.txt | AC | 72 ms | 21756 KB |
1_061.txt | AC | 85 ms | 25596 KB |
1_062.txt | AC | 48 ms | 20352 KB |
1_063.txt | AC | 66 ms | 20352 KB |
1_064.txt | AC | 50 ms | 18688 KB |
1_065.txt | AC | 11 ms | 14848 KB |
1_066.txt | AC | 83 ms | 22396 KB |
1_067.txt | AC | 22 ms | 16128 KB |
1_068.txt | AC | 60 ms | 19584 KB |
1_069.txt | AC | 30 ms | 16896 KB |
1_070.txt | AC | 49 ms | 18944 KB |
1_071.txt | AC | 84 ms | 22652 KB |
1_072.txt | AC | 50 ms | 19456 KB |
1_073.txt | AC | 13 ms | 15232 KB |
1_074.txt | AC | 11 ms | 14848 KB |
1_075.txt | AC | 44 ms | 18560 KB |
1_076.txt | AC | 99 ms | 24060 KB |
1_077.txt | AC | 76 ms | 22396 KB |
1_078.txt | AC | 30 ms | 17280 KB |
1_079.txt | AC | 43 ms | 18560 KB |
1_080.txt | AC | 50 ms | 19072 KB |
1_081.txt | AC | 103 ms | 28412 KB |
1_082.txt | AC | 107 ms | 29820 KB |
1_083.txt | AC | 90 ms | 24316 KB |
1_084.txt | AC | 92 ms | 24316 KB |
1_085.txt | AC | 102 ms | 29052 KB |
1_086.txt | AC | 106 ms | 31740 KB |
1_087.txt | AC | 118 ms | 24572 KB |
1_088.txt | AC | 123 ms | 24572 KB |
1_089.txt | AC | 114 ms | 24316 KB |
1_090.txt | AC | 114 ms | 24316 KB |
1_091.txt | AC | 127 ms | 24572 KB |
1_092.txt | AC | 115 ms | 24316 KB |
1_093.txt | AC | 101 ms | 26492 KB |
1_094.txt | AC | 103 ms | 26748 KB |
1_095.txt | AC | 92 ms | 24316 KB |
1_096.txt | AC | 93 ms | 24316 KB |
1_097.txt | AC | 101 ms | 26492 KB |
1_098.txt | AC | 105 ms | 27900 KB |
1_099.txt | AC | 108 ms | 24444 KB |
1_100.txt | AC | 115 ms | 24444 KB |
1_101.txt | AC | 111 ms | 24316 KB |
1_102.txt | AC | 103 ms | 24316 KB |
1_103.txt | AC | 109 ms | 24444 KB |
1_104.txt | AC | 118 ms | 24444 KB |
1_105.txt | AC | 100 ms | 24316 KB |
1_106.txt | AC | 101 ms | 24316 KB |
1_107.txt | AC | 92 ms | 24316 KB |
1_108.txt | AC | 93 ms | 24316 KB |
1_109.txt | AC | 99 ms | 24316 KB |
1_110.txt | AC | 103 ms | 24316 KB |
1_111.txt | AC | 105 ms | 24316 KB |
1_112.txt | AC | 102 ms | 24316 KB |
1_113.txt | AC | 93 ms | 24316 KB |
1_114.txt | AC | 93 ms | 24316 KB |
1_115.txt | AC | 98 ms | 24316 KB |
1_116.txt | AC | 104 ms | 24316 KB |