Submission #1843486
Source Code Expand
#include<cstdio> #include<cstring> #include<iostream> #include<algorithm> using namespace std; #define ll long long struct edge { int t,next; }a[400010]; int head[200010],mx1[200010],mx2[200010],mn[200010],sum[200010],n,tot; char bo[200010]; ll ans; inline int rd() { int x=0;char ch=getchar(); for (;ch<'0'||ch>'9';ch=getchar()); for (;ch>='0'&&ch<='9';ch=getchar()) x=x*10+ch-'0'; return x; } inline void add(int x,int y) { a[++tot].t=y;a[tot].next=head[x];head[x]=tot; } inline void dfs(int x,int y) { mn[x]=2123333333; if (bo[x]=='1') sum[x]++,mn[x]=0; for (int i=head[x];i;i=a[i].next) { int t=a[i].t; if (t==y) continue; dfs(t,x); sum[x]+=sum[t]; int hh=mx1[t]+1; if (mx1[x]<hh) mx2[x]=mx1[x],mx1[x]=hh; else mx2[x]=max(mx2[x],hh); if (sum[t]) mn[x]=min(mn[x],hh); } } inline void dfs1(int x,int y) { for (int i=head[x];i;i=a[i].next) { int t=a[i].t; if (t==y) continue; int hh=(mx1[x]==mx1[t]+1)?mx2[x]+1:mx1[x]+1; if (mx1[t]<hh) mx2[t]=mx1[t],mx1[t]=hh; else mx2[t]=max(mx2[t],hh); if (sum[t]<sum[1]) mn[t]=min(mn[t],hh); dfs1(t,x); } int hh=min(mx2[x]+1,mx1[x]-1); if (hh>=mn[x]) ans+=hh-mn[x]+1; } int main() { n=rd();tot=0; for (int i=1;i<n;i++) { int x=rd(),y=rd(); add(x,y);add(y,x); } scanf("%s",bo+1); ans=0LL;dfs(1,0);dfs1(1,0); printf("%lld\n",ans+1); return 0; }
Submission Info
Submission Time | |
---|---|
Task | F - Black Radius |
User | DCXDCX |
Language | C++14 (GCC 5.4.1) |
Score | 1900 |
Code Size | 1411 Byte |
Status | AC |
Exec Time | 53 ms |
Memory | 11136 KB |
Compile Error
./Main.cpp: In function ‘int main()’: ./Main.cpp:65:18: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%s",bo+1); ^
Judge Result
Set Name | Sample | Subtask | All | ||||||
---|---|---|---|---|---|---|---|---|---|
Score / Max Score | 0 / 0 | 1300 / 1300 | 600 / 600 | ||||||
Status |
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Set Name | Test Cases |
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Sample | 0_00.txt, 0_01.txt, 0_02.txt |
Subtask | 0_01.txt, 1_00.txt, 1_01.txt, 1_02.txt, 1_03.txt, 1_04.txt, 1_05.txt, 1_06.txt, 1_07.txt, 1_08.txt, 1_09.txt, 1_10.txt, 1_11.txt, 1_12.txt, 1_13.txt, 1_14.txt, 1_15.txt, 1_16.txt, 1_17.txt, 1_18.txt, 1_19.txt, 1_20.txt, 1_21.txt, 1_22.txt, 1_23.txt, 1_24.txt, 1_25.txt, 1_26.txt, 1_27.txt, 1_28.txt, 1_29.txt |
All | 0_00.txt, 0_01.txt, 0_02.txt, 1_00.txt, 1_01.txt, 1_02.txt, 1_03.txt, 1_04.txt, 1_05.txt, 1_06.txt, 1_07.txt, 1_08.txt, 1_09.txt, 1_10.txt, 1_11.txt, 1_12.txt, 1_13.txt, 1_14.txt, 1_15.txt, 1_16.txt, 1_17.txt, 1_18.txt, 1_19.txt, 1_20.txt, 1_21.txt, 1_22.txt, 1_23.txt, 1_24.txt, 1_25.txt, 1_26.txt, 1_27.txt, 1_28.txt, 1_29.txt, 2_00.txt, 2_01.txt, 2_02.txt, 2_03.txt, 2_04.txt, 2_05.txt, 2_06.txt, 2_07.txt, 2_08.txt, 2_09.txt, 2_10.txt, 2_11.txt, 2_12.txt, 2_13.txt, 2_14.txt, 2_15.txt, 2_16.txt, 2_17.txt, 2_18.txt, 2_19.txt, 2_20.txt, 2_21.txt, 2_22.txt, 2_23.txt, 2_24.txt, 2_25.txt, 2_26.txt, 2_27.txt, 2_28.txt, 2_29.txt, 2_30.txt, 2_31.txt, 2_32.txt, 2_33.txt, 2_34.txt, 2_35.txt, 2_36.txt, 2_37.txt, 2_38.txt, 2_39.txt, 2_40.txt, 2_41.txt, 2_42.txt, 2_43.txt, 2_44.txt, 2_45.txt, 2_46.txt, 2_47.txt |
Case Name | Status | Exec Time | Memory |
---|---|---|---|
0_00.txt | AC | 2 ms | 4352 KB |
0_01.txt | AC | 2 ms | 4352 KB |
0_02.txt | AC | 2 ms | 4352 KB |
1_00.txt | AC | 2 ms | 4352 KB |
1_01.txt | AC | 49 ms | 11136 KB |
1_02.txt | AC | 48 ms | 9856 KB |
1_03.txt | AC | 48 ms | 7552 KB |
1_04.txt | AC | 38 ms | 7424 KB |
1_05.txt | AC | 30 ms | 7424 KB |
1_06.txt | AC | 42 ms | 7424 KB |
1_07.txt | AC | 42 ms | 7424 KB |
1_08.txt | AC | 44 ms | 7808 KB |
1_09.txt | AC | 47 ms | 9344 KB |
1_10.txt | AC | 45 ms | 8960 KB |
1_11.txt | AC | 47 ms | 11136 KB |
1_12.txt | AC | 43 ms | 8192 KB |
1_13.txt | AC | 47 ms | 9216 KB |
1_14.txt | AC | 44 ms | 8192 KB |
1_15.txt | AC | 44 ms | 7808 KB |
1_16.txt | AC | 45 ms | 8448 KB |
1_17.txt | AC | 48 ms | 8960 KB |
1_18.txt | AC | 44 ms | 7424 KB |
1_19.txt | AC | 43 ms | 7424 KB |
1_20.txt | AC | 45 ms | 7424 KB |
1_21.txt | AC | 47 ms | 7680 KB |
1_22.txt | AC | 39 ms | 7424 KB |
1_23.txt | AC | 40 ms | 7424 KB |
1_24.txt | AC | 46 ms | 7680 KB |
1_25.txt | AC | 40 ms | 8064 KB |
1_26.txt | AC | 40 ms | 7296 KB |
1_27.txt | AC | 38 ms | 7424 KB |
1_28.txt | AC | 39 ms | 7552 KB |
1_29.txt | AC | 42 ms | 8320 KB |
2_00.txt | AC | 2 ms | 4352 KB |
2_01.txt | AC | 48 ms | 11008 KB |
2_02.txt | AC | 48 ms | 10496 KB |
2_03.txt | AC | 53 ms | 10240 KB |
2_04.txt | AC | 48 ms | 9216 KB |
2_05.txt | AC | 47 ms | 9344 KB |
2_06.txt | AC | 49 ms | 9600 KB |
2_07.txt | AC | 46 ms | 7424 KB |
2_08.txt | AC | 45 ms | 7424 KB |
2_09.txt | AC | 46 ms | 7424 KB |
2_10.txt | AC | 37 ms | 7424 KB |
2_11.txt | AC | 35 ms | 7424 KB |
2_12.txt | AC | 36 ms | 7424 KB |
2_13.txt | AC | 31 ms | 6656 KB |
2_14.txt | AC | 29 ms | 7296 KB |
2_15.txt | AC | 30 ms | 7424 KB |
2_16.txt | AC | 44 ms | 7424 KB |
2_17.txt | AC | 42 ms | 7424 KB |
2_18.txt | AC | 44 ms | 7424 KB |
2_19.txt | AC | 42 ms | 7424 KB |
2_20.txt | AC | 41 ms | 7424 KB |
2_21.txt | AC | 43 ms | 7424 KB |
2_22.txt | AC | 43 ms | 7680 KB |
2_23.txt | AC | 43 ms | 7936 KB |
2_24.txt | AC | 47 ms | 7808 KB |
2_25.txt | AC | 47 ms | 9472 KB |
2_26.txt | AC | 48 ms | 9088 KB |
2_27.txt | AC | 49 ms | 9472 KB |
2_28.txt | AC | 44 ms | 8832 KB |
2_29.txt | AC | 47 ms | 10624 KB |
2_30.txt | AC | 46 ms | 9984 KB |
2_31.txt | AC | 47 ms | 8960 KB |
2_32.txt | AC | 41 ms | 7552 KB |
2_33.txt | AC | 45 ms | 8192 KB |
2_34.txt | AC | 45 ms | 8704 KB |
2_35.txt | AC | 46 ms | 9600 KB |
2_36.txt | AC | 48 ms | 7424 KB |
2_37.txt | AC | 44 ms | 7424 KB |
2_38.txt | AC | 45 ms | 7808 KB |
2_39.txt | AC | 45 ms | 7552 KB |
2_40.txt | AC | 37 ms | 7424 KB |
2_41.txt | AC | 40 ms | 7424 KB |
2_42.txt | AC | 34 ms | 7424 KB |
2_43.txt | AC | 45 ms | 9216 KB |
2_44.txt | AC | 35 ms | 7424 KB |
2_45.txt | AC | 32 ms | 7424 KB |
2_46.txt | AC | 33 ms | 7552 KB |
2_47.txt | AC | 42 ms | 8448 KB |