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IDProblemSubmitterResultTimeMemoryLanguageFile sizeSubmit timeJudge time
#477733#9114. Black or White 2ucup-team1231#TL 184ms8044kbC++142.9kb2024-07-14 09:33:272024-07-14 09:33:27

Judging History

你现在查看的是最新测评结果

  • [2024-07-14 09:33:27]
  • 评测
  • 测评结果:TL
  • 用时:184ms
  • 内存:8044kb
  • [2024-07-14 09:33:27]
  • 提交

answer

#include <bits/stdc++.h>
using namespace std;
#define SZ 2999999
typedef long long ll;
#define pb push_back
int n,m,k,ans=2e9,a[2000][2000];
string rst;
void dfs(int x,int y,int tt=0,int ca=0) {
    if(ca>=ans) return;
    if(x>=n) {
        if(tt!=k) return;
        ans=min(ans,ca);
        rst.clear();
        for(int i=0;i<n;++i) {
            for(int j=0;j<m;++j) rst.pb(a[i][j]+'0');
            rst.pb('\n');
        }
        return;
    }
    if(y>=m) {
        dfs(x+1,0,tt,ca);
        return;
    }
    for(a[x][y]=0;a[x][y]<=1;++a[x][y]) {
        int caa=ca;
        if(x&&y)
            caa+=a[x][y]+a[x][y-1]+a[x-1][y]+a[x-1][y-1]==2;
        dfs(x,y+1,tt+a[x][y],caa);
    }
    a[x][y]=0;
}
string mem[50][50][50];
int col[23333];
void sol() {
    map<int,int> cc;
    for(int i=0;i<n;++i)
        for(int j=0;j<m;++j) {
            ++cc[i+j];
        }
    int R=n+m-2;
    for(int i=0;i<=R;++i) col[i]=-1;
    vector<pair<int,int>> s,g;
    int RR=4;
    for(int i=4;i<=R-4;i+=2) {
        s.pb({cc[i]+cc[i+1],i});
        RR=i+2;
    }
    for(int i=0;i<4;++i) g.pb({cc[i],i});
    for(int i=RR;i<=R;++i) g.pb({cc[i],i});
        // for(auto t:g) cerr<<t.first<<" "; cerr<<"|"<<endl;
        // for(auto t:s) cerr<<t.first<<" "; cerr<<endl;

    while(1) {
        random_shuffle(s.begin(),s.end());
        int u[2]={k,n*m-k},ou[2];
        for(auto c:s) {
            int cc;
            if(u[0]>=u[1]) u[cc=0]-=c.first;
            else u[cc=1]-=c.first;
            if(u[0]<0||u[1]<0) break;
            col[c.second]=col[c.second+1]=cc;
        }
        if(u[0]<0||u[1]<0) continue;
        ou[0]=u[0]; ou[1]=u[1];
        for(int uu=1;uu<=100;++uu) {
            random_shuffle(g.begin(),g.end());
            for(auto t:g) col[t.second]=-1;
            u[0]=ou[0]; u[1]=ou[1];
            for(auto c:g) {
                int cc;
                if(u[0]>=u[1]) u[cc=0]-=c.first;
                else u[cc=1]-=c.first;
                if(u[0]<0||u[1]<0) break;
                col[c.second]=cc;
            }
            if(u[0]<0||u[1]<0) continue;
            for(int i=0;i<=R;++i)
                if(col[i]==col[i+2]&&col[i]!=col[i+1]) goto nxt;
    for(int i=0;i<n;++i) {
        for(int j=0;j<m;++j) {
            putchar(col[i+j]+48);
        }
        putchar(10);
        }
            // cout<<u[0]<<" "<<u[1]<<endl;
            return;
            nxt:;
        }
    }
}
int main() {
    for(n=1;n<=20;++n)
        for(m=1;n*m<=20;++m) {
            for(k=0;k<=n*m;++k) {
                ans=2e9;rst="";
                dfs(0,0);
                mem[n][m][k]=rst;
//                cout<<ans<<"+"<<endl<<rst<<endl;
            }
        }
    int T; cin>>T;
    while(T--) {
        cin>>n>>m>>k;
        if(n*m<=20) printf("%s",mem[n][m][k].c_str());
        else sol();
    }
}

Details

Tip: Click on the bar to expand more detailed information

Test #1:

score: 100
Accepted
time: 184ms
memory: 8044kb

input:

2
2 2 2
2 3 0

output:

00
11
000
000

result:

ok Output is valid. OK.

Test #2:

score: -100
Time Limit Exceeded

input:

27520
2 2 0
2 2 1
2 2 2
2 2 3
2 2 4
2 3 0
2 3 1
2 3 2
2 3 3
2 3 4
2 3 5
2 3 6
3 2 0
3 2 1
3 2 2
3 2 3
3 2 4
3 2 5
3 2 6
3 3 0
3 3 1
3 3 2
3 3 3
3 3 4
3 3 5
3 3 6
3 3 7
3 3 8
3 3 9
2 4 0
2 4 1
2 4 2
2 4 3
2 4 4
2 4 5
2 4 6
2 4 7
2 4 8
3 4 0
3 4 1
3 4 2
3 4 3
3 4 4
3 4 5
3 4 6
3 4 7
3 4 8
3 4 9
3 4 10...

output:

00
00
00
01
00
11
01
11
11
11
000
000
000
001
000
101
001
011
010
111
011
111
111
111
00
00
00
00
00
01
01
00
01
00
01
11
01
11
01
01
11
11
11
11
11
000
000
000
000
000
001
000
000
101
000
001
011
000
010
111
000
101
111
001
011
111
010
111
111
011
111
111
111
111
111
0000
0000
0000
0001
0000
0101
0...

result: