QOJ.ac
QOJ
ID | Problem | Submitter | Result | Time | Memory | Language | File size | Submit time | Judge time |
---|---|---|---|---|---|---|---|---|---|
#628511 | #5438. Half Mixed | ustcwaitme | WA | 155ms | 3936kb | C++23 | 1.2kb | 2024-10-10 20:39:23 | 2024-10-10 20:39:24 |
Judging History
answer
#include<bits/stdc++.h>
using namespace std;
typedef long long ll;
void solve()
{
ll n,m;
cin>>n>>m;
ll tt=n*m*(n+1)*(m+1)/4;
if(tt&1)
{
cout<<"No"<<endl;
return;
}
auto get_ans=[&](ll x)->ll
{
ll l=1,r=1e6;
while(l<r)
{
ll mid=(l+r+1)>>1;
if(mid*mid<=x) l=mid;
else r=mid-1;
}
return l;
};
vector<ll>len;
vector<vector<int>>ans(n+1,vector<int>(m+1,0));
if((n*(n+1)/2)%2==0)
{
ll sub=n*(n-1)/2;
while(sub)
{
ll tt=get_ans(sub);
len.push_back(tt);
sub-=tt*tt;
}
int idx=1;
bool flag=0;
for(auto c:len)
{
for(int i=idx;i<=idx+c-1;i++)
for(int j=1;j<=m;j++)
ans[i][j]=flag;
flag=!flag;
idx+=c;
}
}
else
{
ll sub=m*(m-1)/2;
while(sub)
{
ll tt=get_ans(sub);
len.push_back(tt);
sub-=tt*tt;
}
int idx=1;
bool flag=0;
for(auto c:len)
{
for(int i=idx;i<=idx+c-1;i++)
for(int j=1;j<=n;j++)
ans[j][i]=flag;
flag=!flag;
idx+=c;
}
}
cout<<"Yes"<<endl;
for(int i=1;i<=n;i++)
{
for(int j=1;j<=m;j++)
cout<<ans[i][j]<<' ';
cout<<endl;
}
}
int main()
{
ios::sync_with_stdio(0);cin.tie(0);cout.tie(0);
int t=1;
cin>>t;
while(t--)
solve();
return 0;
}
Details
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Test #1:
score: 100
Accepted
time: 0ms
memory: 3780kb
input:
2 2 3 1 1
output:
Yes 0 1 0 0 1 0 No
result:
ok OK, Accepted. (2 test cases)
Test #2:
score: -100
Wrong Answer
time: 155ms
memory: 3936kb
input:
5382 1 1 1 2 2 1 1 3 2 2 3 1 1 4 2 3 3 2 4 1 1 5 2 4 3 3 4 2 5 1 1 6 2 5 3 4 4 3 5 2 6 1 1 7 2 6 3 5 4 4 5 3 6 2 7 1 1 8 2 7 3 6 4 5 5 4 6 3 7 2 8 1 1 9 2 8 3 7 4 6 5 5 6 4 7 3 8 2 9 1 1 10 2 9 3 8 4 7 5 6 6 5 7 4 8 3 9 2 10 1 1 11 2 10 3 9 4 8 5 7 6 6 7 5 8 4 9 3 10 2 11 1 1 12 2 11 3 10 4 9 5 8 6 ...
output:
No No No Yes 0 1 0 No Yes 0 1 0 Yes 0 0 1 0 Yes 0 1 0 0 1 0 Yes 0 0 1 1 0 0 Yes 0 0 1 0 No Yes 0 0 1 0 0 0 1 0 Yes 0 0 0 1 1 1 0 0 0 Yes 0 0 0 0 1 1 0 0 No No No Yes 0 0 0 0 1 1 1 1 0 0 0 0 Yes 0 0 0 0 0 0 1 1 1 0 0 0 No No Yes 0 0 0 0 1 1 0 No Yes 0 0 0 0 0 1 1 1 1 1...
result:
wrong answer 35 Mixed Submatrices Found, but 39 Expected (test case 67)