이 제출은 이전 버전의 oj.uz에서 채점하였습니다. 현재는 제출 당시와는 다른 서버에서 채점을 하기 때문에, 다시 제출하면 결과가 달라질 수도 있습니다.
#include <iostream>
#include <cstdio>
#include <cmath>
#include <algorithm>
#include <cassert>
#include <vector>
using namespace std;
void solve(){
vector < int > nez2;
int n, m;
cin >> n >> m;
int sol2;
int sol;
int x;
if(n>m){
sol=(n+m-1)/m*m-1;
int br=(sol+m-1)/m+1;
nez2.push_back(-br*(m-1)+1);
x=1;
while(x+m<=n){
for(int i=0; i<m-1; i++){
nez2.push_back(br);
}
nez2.push_back(-br*(m-1)+1);
x+=m;
}
sol2=nez2.size()+(n-nez2.size())*2;
if(n%m==0 || sol>sol2){
cout << sol << '\n';
for(int i=1; i<=sol; i++){
if(i%m){
cout << -br << ' ';
}
else{
cout << br*(m-1)+1 << ' ';
}
}
cout << '\n';
}
else{
cout << sol2 << '\n';
for(int i=0; i<n-(int)nez2.size(); i++){
cout << br << ' ';
}
for(int i=0; i<(int)nez2.size(); i++){
cout << nez2[i] << ' ';
}
for(int i=0; i<n-(int)nez2.size(); i++){
cout << br << ' ';
}
cout << '\n';
}
}
else{
sol=(n+m-1)/n*n-1;
int br=(sol+n-1)/n+1;
nez2.push_back(br*(n-1)-1);
x=1;
while(x+n<=m){
for(int i=0; i<n-1; i++){
nez2.push_back(-br);
}
nez2.push_back(br*(n-1)-1);
x+=n;
}
sol2=nez2.size()+(m-nez2.size())*2;
if(m%n==0 || sol>sol2){
cout << sol << '\n';
for(int i=1; i<=sol; i++){
if(i%n){
cout << br << ' ';
}
else{
cout << -br*(n-1)-1 << ' ';
}
}
cout << '\n';
}
else{
cout << sol2 << '\n';
for(int i=0; i<m-(int)nez2.size(); i++){
cout << -br << ' ';
}
for(int i=0; i<(int)nez2.size(); i++){
cout << nez2[i] << ' ';
}
for(int i=0; i<m-(int)nez2.size(); i++){
cout << -br << ' ';
}
cout << '\n';
}
}
}
int main(){
ios_base::sync_with_stdio(false);
cin.tie(0);
cout.tie(0);
int t;
cin >> t;
while(t--){
solve();
}
return 0;
}
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