QOJ.ac
QOJ
ID | Problem | Submitter | Result | Time | Memory | Language | File size | Submit time | Judge time |
---|---|---|---|---|---|---|---|---|---|
#74225 | #5438. Half Mixed | zhangboju# | WA | 54ms | 3436kb | C++14 | 1.4kb | 2023-01-31 10:11:43 | 2023-01-31 10:11:46 |
Judging History
answer
#include<bits/stdc++.h>
using namespace std;
template <typename T> inline void read(T &x)
{
x=0;short f=1;char c=getchar();
for(;c<'0'||c>'9';c=getchar()) if(c=='-') f=-1;
for(;c>='0'&&c<='9';c=getchar()) x=(x<<1)+(x<<3)+(c^48);
x*=f;return;
}
#define ll long long
int n,m;
int get(ll x,int up)
{
int l=1,r=up,ans=l;
while(l<=r)
{
int mid=l+r>>1;
if(1ll*mid*(mid+1)/2<=x) l=mid+1,ans=mid;
else r=mid-1;
}
return ans;
}
void solve()
{
read(n),read(m);
if(1ll*n*(n+1)/2%2==1&&1ll*m*(m+1)/2%2==1)
return puts("No"),void();
if(1ll*m*(m+1)/2%2==0)
{
vector<int>v;
ll t=1ll*m*(m+1)/4-m;
int len=m,cnt=0;
while(t&&len)
{
int x=get(t,len);
v.push_back(x);
len-=x,t-=1ll*x*(x+1)/2;
}
while(cnt<m) v.push_back(1),++cnt;
puts("Yes");
for(int i=1;i<=n;++i)
{
int c=1;
for(int x:v)
{
while(x--) putchar(c+'0'),putchar(' ');
c^=1;
}
putchar('\n');
}
}
else
{
vector<int>v;
ll t=1ll*n*(n+1)/4-n;
int len=n,cnt=0;
while(t&&len)
{
int x=get(t,len);
v.push_back(x);
len-=x,t-=1ll*x*(x+1)/2;
}
while(cnt<n) v.push_back(1),++cnt;
puts("Yes");
int c=1;
for(int x:v)
{
while(x--)
{
for(int i=1;i<=m;++i)
putchar(c+'0'),putchar(' ');
putchar('\n');
}
c^=1;
}
}
}
int main()
{
int T;read(T);
while(T--) solve();
return 0;
}
Details
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Test #1:
score: 100
Accepted
time: 2ms
memory: 3436kb
input:
2 2 3 1 1
output:
Yes 1 0 1 1 0 1 No
result:
ok OK, Accepted. (2 test cases)
Test #2:
score: -100
Wrong Answer
time: 54ms
memory: 3284kb
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 1 0 1 No Yes 1 0 1 Yes 1 0 1 0 1 Yes 1 0 1 1 0 1 Yes 1 1 0 0 1 1 Yes 1 0 1 0 1 No Yes 1 0 1 0 1 1 0 1 0 1 Yes 1 0 1 1 0 1 1 0 1 Yes 1 1 0 0 1 1 0 0 1 1 No No No Yes 1 0 1 0 1 1 0 1 0 1 1 0 1 0 1 Yes 1 0 1 1 0 1 1 0 1 1 0 1 No No Yes 1 1 1 0 1 0 1 0 1 0 1 ...
result:
wrong answer 6 Mixed Submatrices Found, but 5 Expected (test case 7)