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QOJ
ID | Problem | Submitter | Result | Time | Memory | Language | File size | Submit time | Judge time |
---|---|---|---|---|---|---|---|---|---|
#620596 | #5438. Half Mixed | MENDAX | RE | 1ms | 3720kb | C++14 | 1.5kb | 2024-10-07 19:34:13 | 2024-10-07 19:34:27 |
Judging History
answer
#include<bits/stdc++.h>
using namespace std;
#define int long long
#define endl '\n'
const int N=1e6+10,mod=998244353;
int gcd(int a,int b){return b?gcd(b,a%b):a;}
typedef pair<int,int> PII;
vector<int> num;
int path[N];
bool dfs(int u,int n1,int n2,int op){
if(n2==u*(u+1)/4&&n1==u){
return true;
}
if(u*(u+1)/4-n2==u-n1){
for(int p=n1+1;p<=u;p++) path[p]=op,op=1-op;
return true;
}
int sheng=u*(u+1)/4-n2;
auto it=upper_bound(num.begin(),num.end(),sheng)-num.begin();
it--;
for(int i=it;i>=1;i--){
int st=1;
for(int j=min((u-n1)/i,(u*(u+1)/4-n2)/num[i]);j>=1;j--){
if(i*j+n1>u) break;
if(num[i]*j+n2>(u+1)*u/4) break;
if(dfs(u,n1+j*i,n2+num[i]*j,(op+j)%2)){
int nums=0;
for(int p=n1+1;p<=n1+i*j;p++){
path[p]=op;
nums++;
if(nums%i==0) op=1-op;
}
return true;
}
}
}
return false;
}
void slove(){
int n,m;cin>>n>>m;
for(int i=0;i<=1e4;i++) num.push_back(i*(i+1)/2);
vector<vector<int>>g(n+4,vector<int>(m+5,0));
if(m%4==3||m%4==0){
dfs(m,0,0,0);
for(int i=1;i<=n;i++){
for(int j=1;j<=m;j++) g[i][j]=path[j];
}
}
else if(n%4==0|n%4==3){
dfs(n,0,0,0);
for(int i=1;i<=m;i++){
for(int j=1;j<=n;j++) g[j][i]=path[j];
}
}
else {
cout<<"No"<<endl;
return ;
}
cout<<"Yes"<<endl;
for(int i=1;i<=n;i++){
for(int j=1;j<=m;j++){
cout<<g[i][j]<<" ";
}
cout<<endl;
}
}
signed main(){
ios::sync_with_stdio(false);cin.tie(nullptr);cout.tie(nullptr);
int T=1;
cin>>T;
while(T--) slove();
}
Details
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Test #1:
score: 100
Accepted
time: 1ms
memory: 3720kb
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
Runtime Error
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 ...