Submission #2501802
Source Code Expand
/*{{{*/ #include<cstdio> #include<cstdlib> #include<cstring> #include<cmath> #include<algorithm> #include<string> #include<iostream> #include<sstream> #include<set> #include<map> #include<queue> #include<bitset> #include<vector> #include<limits.h> #include<assert.h> #define SZ(X) ((int)(X).size()) #define ALL(X) (X).begin(), (X).end() #define REP(I, N) for (int I = 0; I < (N); ++I) #define REPP(I, A, B) for (int I = (A); I < (B); ++I) #define FOR(I, A, B) for (int I = (A); I <= (B); ++I) #define FORS(I, S) for (int I = 0; S[I]; ++I) #define RS(X) scanf("%s", (X)) #define SORT_UNIQUE(c) (sort(c.begin(),c.end()), c.resize(distance(c.begin(),unique(c.begin(),c.end())))) #define GET_POS(c,x) (lower_bound(c.begin(),c.end(),x)-c.begin()) #define CASET int ___T; scanf("%d", &___T); for(int cs=1;cs<=___T;cs++) #define MP make_pair #define PB push_back #define MS0(X) memset((X), 0, sizeof((X))) #define MS1(X) memset((X), -1, sizeof((X))) #define LEN(X) strlen(X) #define F first #define S second using namespace std; typedef long long LL; typedef unsigned long long ULL; typedef long double LD; typedef pair<int,int> PII; typedef vector<int> VI; typedef vector<LL> VL; typedef vector<PII> VPII; typedef pair<LL,LL> PLL; typedef vector<PLL> VPLL; template<class T> void _R(T &x) { cin >> x; } void _R(int &x) { scanf("%d", &x); } void _R(int64_t &x) { scanf("%lld", &x); } void _R(double &x) { scanf("%lf", &x); } void _R(char &x) { scanf(" %c", &x); } void _R(char *x) { scanf("%s", x); } void R() {} template<class T, class... U> void R(T &head, U &... tail) { _R(head); R(tail...); } template<class T> void _W(const T &x) { cout << x; } void _W(const int &x) { printf("%d", x); } void _W(const int64_t &x) { printf("%lld", x); } void _W(const double &x) { printf("%.16f", x); } void _W(const char &x) { putchar(x); } void _W(const char *x) { printf("%s", x); } template<class T,class U> void _W(const pair<T,U> &x) {_W(x.F); putchar(' '); _W(x.S);} template<class T> void _W(const vector<T> &x) { for (auto i = x.begin(); i != x.end(); _W(*i++)) if (i != x.cbegin()) putchar(' '); } void W() {} template<class T, class... U> void W(const T &head, const U &... tail) { _W(head); putchar(sizeof...(tail) ? ' ' : '\n'); W(tail...); } #ifdef HOME #define DEBUG(...) {printf("# ");printf(__VA_ARGS__);puts("");} #else #define DEBUG(...) #endif int MOD = 1e9+7; void ADD(LL& x,LL v){x=(x+v)%MOD;if(x<0)x+=MOD;} /*}}}*/ const int SIZE = 1e6+10; VI e[SIZE]; char s[SIZE]; int have_w[SIZE]; int bw[SIZE]; int base; void dfs0(int x,int lt){ if(s[x]=='W')have_w[x]=1; for(int y: e[x]){ if(y==lt)continue; dfs0(y,x); if(have_w[y]){ have_w[x]=1; base+=2; bw[x]^=1; } } if(x!=lt&&have_w[x])bw[x]^=1; if(!bw[x])base++; } int dp[SIZE][2]; int ans; const int INF = 1e8; void dfs(int x,int lt){ dp[x][1]=-INF; dp[x][0]=-INF; for(int y:e[x]){ if(y==lt)continue; if(!have_w[y])continue; dfs(y,x); ans=min(ans,base-dp[y][1]); ans=min(ans,base-dp[y][0]+bw[x]); ans=min(ans,base-dp[x][0]-dp[y][1]+(2*bw[x]-1)); ans=min(ans,base-dp[x][1]-dp[y][0]+(2*bw[x]-1)); REP(j,2)dp[x][j]=max(dp[x][j],dp[y][j]); } REP(i,2)dp[x][i]+=1-(2*bw[x]-1); dp[x][1]=max(dp[x][1],1-(2*bw[x]-1)); dp[x][0]=max(dp[x][0],1); } int main(){ int N; R(N); REPP(i,1,N){ int x,y; R(x,y); e[x].PB(y); e[y].PB(x); } RS(s+1); int w_cnt=0; FOR(i,1,N){ if(s[i]=='W')w_cnt++; } if(w_cnt <= 1){ W(w_cnt); return 0; } int st; FOR(i,1,N){ if(s[i]=='W'){ st=i; } else bw[i]=1; } dfs0(st,st); ans=INF; dfs(st,st); W(ans); return 0; }
Submission Info
Submission Time | |
---|---|
Task | F - Monochrome Cat |
User | dreamoon |
Language | C++14 (GCC 5.4.1) |
Score | 800 |
Code Size | 3957 Byte |
Status | AC |
Exec Time | 62 ms |
Memory | 42240 KB |
Compile Error
./Main.cpp: In function ‘void _R(int64_t&)’: ./Main.cpp:46:39: warning: format ‘%lld’ expects argument of type ‘long long int*’, but argument 2 has type ‘int64_t* {aka long int*}’ [-Wformat=] void _R(int64_t &x) { scanf("%lld", &x); } ^ ./Main.cpp: In function ‘void _W(const int64_t&)’: ./Main.cpp:54:45: warning: format ‘%lld’ expects argument of type ‘long long int’, but argument 2 has type ‘int64_t {aka long int}’ [-Wformat=] void _W(const int64_t &x) { printf("%lld", x); } ^ ./Main.cpp: In function ‘void _R(int&)’: ./Main.cpp:45:34: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] void _R(int &x) { scanf("%d", &x); } ^ ./Main.cpp: In function ‘void _R(int64_t&)’: ./Main.cpp:46:40: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] voi...
Judge Result
Set Name | Sample | All | ||||
---|---|---|---|---|---|---|
Score / Max Score | 0 / 0 | 800 / 800 | ||||
Status |
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|
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 | 10 ms | 30080 KB |
0_001.txt | AC | 10 ms | 30080 KB |
0_002.txt | AC | 9 ms | 25984 KB |
0_003.txt | AC | 10 ms | 30080 KB |
1_003.txt | AC | 9 ms | 25984 KB |
1_004.txt | AC | 9 ms | 25984 KB |
1_005.txt | AC | 9 ms | 25984 KB |
1_006.txt | AC | 9 ms | 25984 KB |
1_007.txt | AC | 9 ms | 25984 KB |
1_008.txt | AC | 10 ms | 30080 KB |
1_009.txt | AC | 10 ms | 30080 KB |
1_010.txt | AC | 10 ms | 30080 KB |
1_011.txt | AC | 9 ms | 25984 KB |
1_012.txt | AC | 9 ms | 25984 KB |
1_013.txt | AC | 10 ms | 30080 KB |
1_014.txt | AC | 10 ms | 30080 KB |
1_015.txt | AC | 10 ms | 30080 KB |
1_016.txt | AC | 10 ms | 30080 KB |
1_017.txt | AC | 9 ms | 25984 KB |
1_018.txt | AC | 9 ms | 25984 KB |
1_019.txt | AC | 10 ms | 30080 KB |
1_020.txt | AC | 9 ms | 25984 KB |
1_021.txt | AC | 10 ms | 30080 KB |
1_022.txt | AC | 10 ms | 30080 KB |
1_023.txt | AC | 9 ms | 25984 KB |
1_024.txt | AC | 9 ms | 25984 KB |
1_025.txt | AC | 10 ms | 30080 KB |
1_026.txt | AC | 10 ms | 30080 KB |
1_027.txt | AC | 10 ms | 30080 KB |
1_028.txt | AC | 10 ms | 30080 KB |
1_029.txt | AC | 9 ms | 25984 KB |
1_030.txt | AC | 9 ms | 25984 KB |
1_031.txt | AC | 10 ms | 30080 KB |
1_032.txt | AC | 10 ms | 30080 KB |
1_033.txt | AC | 10 ms | 30080 KB |
1_034.txt | AC | 10 ms | 30080 KB |
1_035.txt | AC | 9 ms | 25984 KB |
1_036.txt | AC | 10 ms | 25984 KB |
1_037.txt | AC | 10 ms | 30080 KB |
1_038.txt | AC | 10 ms | 30080 KB |
1_039.txt | AC | 10 ms | 30080 KB |
1_040.txt | AC | 10 ms | 30080 KB |
1_041.txt | AC | 9 ms | 25984 KB |
1_042.txt | AC | 9 ms | 25984 KB |
1_043.txt | AC | 10 ms | 30080 KB |
1_044.txt | AC | 10 ms | 30080 KB |
1_045.txt | AC | 27 ms | 32640 KB |
1_046.txt | AC | 31 ms | 33280 KB |
1_047.txt | AC | 44 ms | 29056 KB |
1_048.txt | AC | 35 ms | 28288 KB |
1_049.txt | AC | 43 ms | 37248 KB |
1_050.txt | AC | 39 ms | 35200 KB |
1_051.txt | AC | 34 ms | 33272 KB |
1_052.txt | AC | 16 ms | 30848 KB |
1_053.txt | AC | 34 ms | 28920 KB |
1_054.txt | AC | 19 ms | 27132 KB |
1_055.txt | AC | 34 ms | 33272 KB |
1_056.txt | AC | 22 ms | 27516 KB |
1_057.txt | AC | 11 ms | 30208 KB |
1_058.txt | AC | 32 ms | 33152 KB |
1_059.txt | AC | 22 ms | 27008 KB |
1_060.txt | AC | 36 ms | 28288 KB |
1_061.txt | AC | 48 ms | 35712 KB |
1_062.txt | AC | 31 ms | 33024 KB |
1_063.txt | AC | 33 ms | 32512 KB |
1_064.txt | AC | 27 ms | 31744 KB |
1_065.txt | AC | 11 ms | 26112 KB |
1_066.txt | AC | 36 ms | 28668 KB |
1_067.txt | AC | 17 ms | 30848 KB |
1_068.txt | AC | 29 ms | 32128 KB |
1_069.txt | AC | 21 ms | 31104 KB |
1_070.txt | AC | 30 ms | 31872 KB |
1_071.txt | AC | 39 ms | 28544 KB |
1_072.txt | AC | 27 ms | 27648 KB |
1_073.txt | AC | 14 ms | 30464 KB |
1_074.txt | AC | 13 ms | 30336 KB |
1_075.txt | AC | 29 ms | 31744 KB |
1_076.txt | AC | 55 ms | 35968 KB |
1_077.txt | AC | 38 ms | 28544 KB |
1_078.txt | AC | 19 ms | 26880 KB |
1_079.txt | AC | 28 ms | 31744 KB |
1_080.txt | AC | 30 ms | 32000 KB |
1_081.txt | AC | 58 ms | 39296 KB |
1_082.txt | AC | 62 ms | 40448 KB |
1_083.txt | AC | 45 ms | 29056 KB |
1_084.txt | AC | 45 ms | 29056 KB |
1_085.txt | AC | 60 ms | 42240 KB |
1_086.txt | AC | 60 ms | 41856 KB |
1_087.txt | AC | 43 ms | 36344 KB |
1_088.txt | AC | 43 ms | 36344 KB |
1_089.txt | AC | 39 ms | 29432 KB |
1_090.txt | AC | 40 ms | 29432 KB |
1_091.txt | AC | 44 ms | 36344 KB |
1_092.txt | AC | 39 ms | 29432 KB |
1_093.txt | AC | 57 ms | 37760 KB |
1_094.txt | AC | 57 ms | 38016 KB |
1_095.txt | AC | 46 ms | 29056 KB |
1_096.txt | AC | 44 ms | 29056 KB |
1_097.txt | AC | 57 ms | 37760 KB |
1_098.txt | AC | 57 ms | 37760 KB |
1_099.txt | AC | 50 ms | 36220 KB |
1_100.txt | AC | 50 ms | 36220 KB |
1_101.txt | AC | 43 ms | 29308 KB |
1_102.txt | AC | 42 ms | 29308 KB |
1_103.txt | AC | 56 ms | 36220 KB |
1_104.txt | AC | 50 ms | 36220 KB |
1_105.txt | AC | 58 ms | 36096 KB |
1_106.txt | AC | 57 ms | 36096 KB |
1_107.txt | AC | 46 ms | 29184 KB |
1_108.txt | AC | 46 ms | 29184 KB |
1_109.txt | AC | 56 ms | 36096 KB |
1_110.txt | AC | 54 ms | 36096 KB |
1_111.txt | AC | 55 ms | 36096 KB |
1_112.txt | AC | 56 ms | 36096 KB |
1_113.txt | AC | 45 ms | 29184 KB |
1_114.txt | AC | 45 ms | 29184 KB |
1_115.txt | AC | 55 ms | 36096 KB |
1_116.txt | AC | 56 ms | 36096 KB |