Submission #3423409
Source Code Expand
#include<bits/stdc++.h> using namespace std; typedef long long ll; typedef unsigned long long ull; typedef double db; typedef long double ldb; typedef pair <int, int> pii; typedef pair <ll, ll> pll; typedef pair <db, db> pdd; typedef vector<int> vi; typedef vector< vector<int> > vvi; #define FOR(k,a,b) for(int k=(a); k<=(b); ++k) #define IFOR(k,a,b) for(int k=(a); k>=(b); --k) #define REP(k,a) for(int k=0; k<(a);++k) #define IREP(k,a) for(int k=a-1; k>=(0);--k) #define SZ(a) int((a).size()) #define ALL(c) (c).begin(),(c).end() #define PB push_back #define MP make_pair #define x first #define y second #define INF 1000000001 #define INFLONG 1000000000000000000 #define MOD 1000000007 #define MAX 100 #define ITERS 100 #define MAXM 200000 #define MAXN 1000000 #define PI 3.1415926535897932384626 #define ERR -987654321 #define MEM(a,b) memset(a,b,sizeof(a)); #define read1(a) scanf("%d",&a) #define read2(a,b) scanf("%d%d",&a,&b) #define read3(a,b,c) scanf("%d%d%d",&a,&b,&c) #define readl1(a) scanf("%lld",&a) #define readl2(a,b) scanf("%lld%lld",&a,&b) #define readl3(a,b,c) scanf("%lld%lld%lld",&a,&b,&c) int deg[MAXN], color[MAXN], isValid[MAXN], visited[MAXN]; vi v[MAXN], g[MAXN]; int weight[MAXN], node, wt; void dfs(int p, int len, int flag) { visited[p] = flag; if(len + weight[p] >= wt) { wt = len; node = p; } for(auto i: g[p]) { if(visited[i] == flag) continue; dfs(i, len+weight[p], flag); } } int main() { ios_base::sync_with_stdio(0);cin.tie(0);cout.tie(0); mt19937 rng(chrono::steady_clock::now().time_since_epoch().count()); int rn = uniform_int_distribution<int>(0, MAXN)(rng); int n; char c; cin>>n; REP(i,n-1) { int x,y; cin>>x>>y; x--, y--; v[x].PB(y); v[y].PB(x); deg[x]++; deg[y]++; } int count = 0; REP(i,n) { cin>>c; if(c == 'W') color[i] = 0, count++; else color[i] = 1; } if(count == 0) { cout<<"0"; return 0; } else if(count == 1) { cout<<"1"; return 0; } queue<int> q; REP(i,n) if(deg[i] == 1 && color[i] == 1) q.push(i); MEM(isValid, 1); while(!q.empty()) { int p = q.front(); isValid[p] = 0; q.pop(); for(auto i: v[p]) { if(deg[i] <= 1 || !isValid[i]) continue; deg[i] -= 1; if(deg[i] == 1 && color[i] == 1) q.push(i); } } int edges = 0, bv = 0, st = -1; REP(i,n) { if(!isValid[i]) continue; st = i; for(auto j: v[i]) if(isValid[j]) g[i].PB(j); edges += g[i].size(); if((color[i] == 1 && g[i].size()%2 == 1) || (color[i] == 0 && g[i].size()%2 == 0)) weight[i] = 2, bv += 1; else weight[i] = 0; } wt = -1; dfs(st,0,1); wt = -1, st = node; dfs(st,0,2); int res = edges + bv - wt; cout<<res; return 0; }
Submission Info
Submission Time | |
---|---|
Task | F - Monochrome Cat |
User | alokpatra1998 |
Language | C++14 (GCC 5.4.1) |
Score | 800 |
Code Size | 3043 Byte |
Status | AC |
Exec Time | 78 ms |
Memory | 68992 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 | 19 ms | 57600 KB |
0_001.txt | AC | 19 ms | 57600 KB |
0_002.txt | AC | 17 ms | 51456 KB |
0_003.txt | AC | 18 ms | 57600 KB |
1_003.txt | AC | 16 ms | 51456 KB |
1_004.txt | AC | 16 ms | 51456 KB |
1_005.txt | AC | 17 ms | 53504 KB |
1_006.txt | AC | 17 ms | 53504 KB |
1_007.txt | AC | 17 ms | 53504 KB |
1_008.txt | AC | 18 ms | 57600 KB |
1_009.txt | AC | 18 ms | 57600 KB |
1_010.txt | AC | 18 ms | 57600 KB |
1_011.txt | AC | 17 ms | 53504 KB |
1_012.txt | AC | 17 ms | 53504 KB |
1_013.txt | AC | 18 ms | 57600 KB |
1_014.txt | AC | 18 ms | 57600 KB |
1_015.txt | AC | 18 ms | 57600 KB |
1_016.txt | AC | 18 ms | 57600 KB |
1_017.txt | AC | 17 ms | 53504 KB |
1_018.txt | AC | 17 ms | 53504 KB |
1_019.txt | AC | 18 ms | 57600 KB |
1_020.txt | AC | 17 ms | 53504 KB |
1_021.txt | AC | 19 ms | 57600 KB |
1_022.txt | AC | 18 ms | 57600 KB |
1_023.txt | AC | 17 ms | 53504 KB |
1_024.txt | AC | 17 ms | 53504 KB |
1_025.txt | AC | 18 ms | 57600 KB |
1_026.txt | AC | 18 ms | 57600 KB |
1_027.txt | AC | 19 ms | 57600 KB |
1_028.txt | AC | 18 ms | 57600 KB |
1_029.txt | AC | 17 ms | 53504 KB |
1_030.txt | AC | 17 ms | 53504 KB |
1_031.txt | AC | 18 ms | 57600 KB |
1_032.txt | AC | 18 ms | 57600 KB |
1_033.txt | AC | 18 ms | 57600 KB |
1_034.txt | AC | 18 ms | 57600 KB |
1_035.txt | AC | 17 ms | 53504 KB |
1_036.txt | AC | 17 ms | 53504 KB |
1_037.txt | AC | 18 ms | 57600 KB |
1_038.txt | AC | 18 ms | 57600 KB |
1_039.txt | AC | 18 ms | 57600 KB |
1_040.txt | AC | 18 ms | 57600 KB |
1_041.txt | AC | 17 ms | 53504 KB |
1_042.txt | AC | 17 ms | 53504 KB |
1_043.txt | AC | 18 ms | 57600 KB |
1_044.txt | AC | 18 ms | 57600 KB |
1_045.txt | AC | 38 ms | 61696 KB |
1_046.txt | AC | 43 ms | 62464 KB |
1_047.txt | AC | 51 ms | 56576 KB |
1_048.txt | AC | 42 ms | 55808 KB |
1_049.txt | AC | 58 ms | 65664 KB |
1_050.txt | AC | 54 ms | 64768 KB |
1_051.txt | AC | 49 ms | 63224 KB |
1_052.txt | AC | 25 ms | 58624 KB |
1_053.txt | AC | 41 ms | 56568 KB |
1_054.txt | AC | 27 ms | 54780 KB |
1_055.txt | AC | 46 ms | 63096 KB |
1_056.txt | AC | 30 ms | 55164 KB |
1_057.txt | AC | 19 ms | 57728 KB |
1_058.txt | AC | 42 ms | 61440 KB |
1_059.txt | AC | 29 ms | 54656 KB |
1_060.txt | AC | 42 ms | 55808 KB |
1_061.txt | AC | 65 ms | 64896 KB |
1_062.txt | AC | 42 ms | 61184 KB |
1_063.txt | AC | 46 ms | 61824 KB |
1_064.txt | AC | 38 ms | 60032 KB |
1_065.txt | AC | 18 ms | 53760 KB |
1_066.txt | AC | 42 ms | 56188 KB |
1_067.txt | AC | 27 ms | 58880 KB |
1_068.txt | AC | 39 ms | 60160 KB |
1_069.txt | AC | 32 ms | 59392 KB |
1_070.txt | AC | 42 ms | 60416 KB |
1_071.txt | AC | 45 ms | 56192 KB |
1_072.txt | AC | 34 ms | 55168 KB |
1_073.txt | AC | 23 ms | 58240 KB |
1_074.txt | AC | 21 ms | 57856 KB |
1_075.txt | AC | 42 ms | 60544 KB |
1_076.txt | AC | 70 ms | 63360 KB |
1_077.txt | AC | 45 ms | 56064 KB |
1_078.txt | AC | 27 ms | 54400 KB |
1_079.txt | AC | 41 ms | 60416 KB |
1_080.txt | AC | 41 ms | 60160 KB |
1_081.txt | AC | 76 ms | 68992 KB |
1_082.txt | AC | 78 ms | 68992 KB |
1_083.txt | AC | 52 ms | 56704 KB |
1_084.txt | AC | 51 ms | 56704 KB |
1_085.txt | AC | 76 ms | 68992 KB |
1_086.txt | AC | 76 ms | 68992 KB |
1_087.txt | AC | 57 ms | 65016 KB |
1_088.txt | AC | 55 ms | 63224 KB |
1_089.txt | AC | 45 ms | 57080 KB |
1_090.txt | AC | 45 ms | 57080 KB |
1_091.txt | AC | 57 ms | 65016 KB |
1_092.txt | AC | 46 ms | 57080 KB |
1_093.txt | AC | 76 ms | 66688 KB |
1_094.txt | AC | 74 ms | 66048 KB |
1_095.txt | AC | 51 ms | 56704 KB |
1_096.txt | AC | 51 ms | 56704 KB |
1_097.txt | AC | 76 ms | 65664 KB |
1_098.txt | AC | 71 ms | 65536 KB |
1_099.txt | AC | 66 ms | 64636 KB |
1_100.txt | AC | 64 ms | 63356 KB |
1_101.txt | AC | 49 ms | 56828 KB |
1_102.txt | AC | 49 ms | 56828 KB |
1_103.txt | AC | 67 ms | 64636 KB |
1_104.txt | AC | 60 ms | 62460 KB |
1_105.txt | AC | 75 ms | 64384 KB |
1_106.txt | AC | 71 ms | 63488 KB |
1_107.txt | AC | 51 ms | 56704 KB |
1_108.txt | AC | 51 ms | 56704 KB |
1_109.txt | AC | 74 ms | 64384 KB |
1_110.txt | AC | 68 ms | 62976 KB |
1_111.txt | AC | 74 ms | 64384 KB |
1_112.txt | AC | 72 ms | 63488 KB |
1_113.txt | AC | 52 ms | 56704 KB |
1_114.txt | AC | 51 ms | 56704 KB |
1_115.txt | AC | 74 ms | 64384 KB |
1_116.txt | AC | 68 ms | 62976 KB |