Submission #19549018
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#include<bits/stdc++.h> using namespace std; const int N=1e5+10; typedef pair<int,int> pii; #define mp make_pair #define fi first #define se second int n,cnt[4],f[3],g[3],_g[3],_cnt[4]; map<int,bool> p; map<int,array<int,3>> q; int getid(array<int,3> a) { for(int i=0;i<3;i++) if(a[i]) return i; return 3; } array<int,3> getarr(int id) { return {id==0,id==1,id==2}; } int main() { #ifdef LOCAL freopen("a.in","r",stdin); freopen("a.out","w",stdout); #endif ios::sync_with_stdio(0);cin.tie(0); cin>>n; for(int i=1,x,y;i<=n;i++) { cin>>x>>y; p[y]^=1;q[x][y%3]^=1; } for(auto t:p) if(t.se) ++f[t.fi%3]; bool b=0; for(auto t:q) { auto a=t.se; if(a[0]+a[1]+a[2]>=2) a[0]=1-a[0],a[1]=1-a[1],a[2]=1-a[2],b^=1; ++_cnt[getid(a)];_g[0]+=a[0];_g[1]+=a[1];_g[2]+=a[2]; } int ans=1e9; for(int s=0;s<16;s++) if(__builtin_parity(s)==b) { memcpy(cnt,_cnt,sizeof(cnt)); memcpy(g,_g,sizeof(g)); bool fl=1; for(int i=0;i<4;i++) if(s>>i&1) { if(!cnt[i]) { fl=0;break; } --cnt[i]; auto tmp=getarr(i); for(int j=0;j<3;j++) g[j]+=1-2*tmp[j]; } if(!fl) continue; int val=max(f[0],g[0])+max(f[1],g[1])+max(f[2],g[2]); //if(s==8) cerr<<val; ans=min(ans,val); for(int i=0;i<3;i++) if(g[i]>f[i]) { int tmp=min({g[i]-f[i],cnt[i],f[0]-g[0],f[1]-g[1],f[2]-g[2]}); if(tmp&1) --tmp; ans=min(ans,val-tmp);break; } } cout<<ans; return 0; }
Submission Info
Submission Time | |
---|---|
Task | C - Flipper |
User | newbie314159 |
Language | C++ (GCC 9.2.1) |
Score | 0 |
Code Size | 1484 Byte |
Status | WA |
Exec Time | 64 ms |
Memory | 9612 KB |
Judge Result
Set Name | Sample | All | ||||||
---|---|---|---|---|---|---|---|---|
Score / Max Score | 0 / 0 | 0 / 1300 | ||||||
Status |
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Set Name | Test Cases |
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Sample | example0.txt |
All | 000.txt, 001.txt, 002.txt, 003.txt, 004.txt, 005.txt, 006.txt, 007.txt, 008.txt, 009.txt, 010.txt, 011.txt, 012.txt, 013.txt, 014.txt, 015.txt, 016.txt, 017.txt, 018.txt, 019.txt, 020.txt, 021.txt, 022.txt, 023.txt, 024.txt, 025.txt, 026.txt, 027.txt, 028.txt, 029.txt, 030.txt, 031.txt, 032.txt, 033.txt, 034.txt, 035.txt, 036.txt, 037.txt, 038.txt, 039.txt, 040.txt, 041.txt, 042.txt, 043.txt, 044.txt, 045.txt, 046.txt, 047.txt, 048.txt, 049.txt, 050.txt, 051.txt, 052.txt, 053.txt, 054.txt, 055.txt, 056.txt, example0.txt |
Case Name | Status | Exec Time | Memory |
---|---|---|---|
000.txt | AC | 39 ms | 5368 KB |
001.txt | AC | 2 ms | 3576 KB |
002.txt | AC | 21 ms | 4736 KB |
003.txt | AC | 43 ms | 5968 KB |
004.txt | AC | 30 ms | 5728 KB |
005.txt | AC | 25 ms | 4320 KB |
006.txt | AC | 46 ms | 6668 KB |
007.txt | AC | 42 ms | 5472 KB |
008.txt | AC | 35 ms | 6368 KB |
009.txt | AC | 54 ms | 7704 KB |
010.txt | AC | 31 ms | 5004 KB |
011.txt | AC | 64 ms | 9060 KB |
012.txt | AC | 11 ms | 4064 KB |
013.txt | AC | 31 ms | 5420 KB |
014.txt | AC | 14 ms | 4188 KB |
015.txt | AC | 49 ms | 6120 KB |
016.txt | AC | 40 ms | 6052 KB |
017.txt | AC | 4 ms | 3736 KB |
018.txt | AC | 13 ms | 3680 KB |
019.txt | AC | 20 ms | 4340 KB |
020.txt | AC | 33 ms | 5368 KB |
021.txt | AC | 19 ms | 4720 KB |
022.txt | AC | 23 ms | 5340 KB |
023.txt | AC | 11 ms | 4180 KB |
024.txt | AC | 26 ms | 5964 KB |
025.txt | AC | 3 ms | 3544 KB |
026.txt | WA | 22 ms | 3560 KB |
027.txt | AC | 22 ms | 3548 KB |
028.txt | AC | 15 ms | 3564 KB |
029.txt | AC | 19 ms | 3564 KB |
030.txt | AC | 18 ms | 3636 KB |
031.txt | AC | 17 ms | 3584 KB |
032.txt | WA | 57 ms | 8792 KB |
033.txt | WA | 56 ms | 8784 KB |
034.txt | AC | 60 ms | 8556 KB |
035.txt | WA | 61 ms | 9612 KB |
036.txt | WA | 54 ms | 9060 KB |
037.txt | WA | 58 ms | 9108 KB |
038.txt | WA | 61 ms | 9360 KB |
039.txt | WA | 61 ms | 9612 KB |
040.txt | WA | 61 ms | 8800 KB |
041.txt | WA | 59 ms | 9004 KB |
042.txt | WA | 54 ms | 9096 KB |
043.txt | WA | 58 ms | 9076 KB |
044.txt | WA | 56 ms | 8776 KB |
045.txt | WA | 58 ms | 9000 KB |
046.txt | WA | 59 ms | 9292 KB |
047.txt | WA | 56 ms | 8880 KB |
048.txt | WA | 58 ms | 9172 KB |
049.txt | WA | 57 ms | 8716 KB |
050.txt | WA | 58 ms | 9256 KB |
051.txt | WA | 58 ms | 8992 KB |
052.txt | WA | 58 ms | 8816 KB |
053.txt | WA | 56 ms | 9228 KB |
054.txt | AC | 61 ms | 8196 KB |
055.txt | AC | 56 ms | 8424 KB |
056.txt | AC | 58 ms | 8592 KB |
example0.txt | AC | 2 ms | 3524 KB |