Submission #2107498
Source Code Expand
#include<iostream> #include<cstdio> #include<algorithm> #include<cstring> #define fo(i,j,l) for(int i=j;i<=l;++i) #define fd(i,j,l) for(int i=j;i>=l;--i) using namespace std; typedef long long ll; const ll N=320,M=N<<1; int n,m,S,T,inf,limit,point; int lb[M][N],g[M],d[M]; int flow[M][M]; int vh[M],h[M]; inline char readchar() { char ch=' '; for(;ch!='S'&&ch!='T'&&ch!='.'&&ch!='o';ch=getchar()); return ch; } inline int min(int a,int b) {return a<b?a:b;} int net(int o,int u) { if(o==T)return u; int minh=point+1; fo(i,1,g[o]<<1){ d[o]=d[o]==g[o]?1:d[o]+1; int k=lb[o][d[o]]; if(flow[k][o]){ if(h[o]==h[k]+1){ int uu=net(k,min(u,flow[k][o])); if(uu>0){ flow[k][o]-=uu; flow[o][k]+=uu; return uu; } if(h[S]>point)return 0; } minh=min(minh,h[k]+1); } } --vh[h[o]]; if(vh[h[o]]==0){ h[S]=point+1; return 0; } h[o]=minh; ++vh[h[o]]; return 0; } int main() { cin>>n>>m; S=n*m+1,T=S+1,limit=n*m,inf=limit<<1,point=n+m+2; fo(i,1,n)fo(l,n+1,m+n){ char ch=readchar(); if(ch=='o'){ flow[i][l]=flow[l][i]=1; lb[i][++g[i]]=l; lb[l][++g[l]]=i; } if(ch=='S'){ flow[i][S]=inf; flow[l][S]=inf; lb[S][++g[S]]=i; lb[S][++g[S]]=l; } if(ch=='T'){ flow[T][i]=inf; flow[T][l]=inf; lb[i][++g[i]]=T; lb[l][++g[l]]=T; } } vh[0]=point; ll ans=0; while(h[S]<=point)ans+=net(S,inf<<3); if(ans>limit)puts("-1");else printf("%lld",ans); }
Submission Info
Submission Time | |
---|---|
Task | F - Lotus Leaves |
User | xianhaoming |
Language | C++14 (GCC 5.4.1) |
Score | 0 |
Code Size | 1502 Byte |
Status | RE |
Exec Time | 101 ms |
Memory | 896 KB |
Judge Result
Set Name | Sample | All | ||||||
---|---|---|---|---|---|---|---|---|
Score / Max Score | 0 / 0 | 0 / 800 | ||||||
Status |
|
|
Set Name | Test Cases |
---|---|
Sample | 0_00.txt, 0_01.txt, 0_02.txt, 0_03.txt |
All | 0_00.txt, 0_01.txt, 0_02.txt, 0_03.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, 1_30.txt, 1_31.txt, 1_32.txt, 1_33.txt, 1_34.txt, 1_35.txt, 1_36.txt, 1_37.txt, 1_38.txt, 1_39.txt, 1_40.txt, 1_41.txt, 1_42.txt, 1_43.txt, 1_44.txt, 1_45.txt, 1_46.txt, 1_47.txt, 1_48.txt, 1_49.txt |
Case Name | Status | Exec Time | Memory |
---|---|---|---|
0_00.txt | AC | 1 ms | 256 KB |
0_01.txt | AC | 1 ms | 256 KB |
0_02.txt | AC | 1 ms | 256 KB |
0_03.txt | AC | 1 ms | 384 KB |
1_00.txt | AC | 1 ms | 256 KB |
1_01.txt | AC | 1 ms | 256 KB |
1_02.txt | AC | 1 ms | 256 KB |
1_03.txt | AC | 1 ms | 256 KB |
1_04.txt | RE | 98 ms | 256 KB |
1_05.txt | RE | 99 ms | 640 KB |
1_06.txt | RE | 98 ms | 640 KB |
1_07.txt | RE | 99 ms | 256 KB |
1_08.txt | RE | 99 ms | 896 KB |
1_09.txt | RE | 100 ms | 640 KB |
1_10.txt | RE | 100 ms | 896 KB |
1_11.txt | RE | 99 ms | 768 KB |
1_12.txt | RE | 99 ms | 768 KB |
1_13.txt | RE | 99 ms | 512 KB |
1_14.txt | RE | 99 ms | 640 KB |
1_15.txt | RE | 99 ms | 640 KB |
1_16.txt | RE | 98 ms | 768 KB |
1_17.txt | RE | 98 ms | 640 KB |
1_18.txt | RE | 98 ms | 768 KB |
1_19.txt | RE | 98 ms | 896 KB |
1_20.txt | RE | 100 ms | 768 KB |
1_21.txt | RE | 99 ms | 896 KB |
1_22.txt | RE | 99 ms | 640 KB |
1_23.txt | RE | 99 ms | 768 KB |
1_24.txt | RE | 99 ms | 512 KB |
1_25.txt | RE | 99 ms | 640 KB |
1_26.txt | RE | 99 ms | 640 KB |
1_27.txt | RE | 99 ms | 640 KB |
1_28.txt | RE | 100 ms | 512 KB |
1_29.txt | RE | 100 ms | 768 KB |
1_30.txt | RE | 99 ms | 640 KB |
1_31.txt | RE | 99 ms | 640 KB |
1_32.txt | RE | 98 ms | 896 KB |
1_33.txt | RE | 98 ms | 768 KB |
1_34.txt | RE | 99 ms | 640 KB |
1_35.txt | RE | 98 ms | 512 KB |
1_36.txt | RE | 98 ms | 896 KB |
1_37.txt | RE | 98 ms | 640 KB |
1_38.txt | RE | 101 ms | 896 KB |
1_39.txt | RE | 98 ms | 896 KB |
1_40.txt | RE | 98 ms | 896 KB |
1_41.txt | RE | 99 ms | 640 KB |
1_42.txt | RE | 98 ms | 640 KB |
1_43.txt | RE | 99 ms | 768 KB |
1_44.txt | RE | 99 ms | 640 KB |
1_45.txt | RE | 100 ms | 896 KB |
1_46.txt | RE | 99 ms | 768 KB |
1_47.txt | RE | 99 ms | 768 KB |
1_48.txt | RE | 98 ms | 640 KB |
1_49.txt | RE | 98 ms | 896 KB |