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QOJ
ID | Problem | Submitter | Result | Time | Memory | Language | File size | Submit time | Judge time |
---|---|---|---|---|---|---|---|---|---|
#138489 | #6512. Completely Multiplicative Function | nikolapesic2802 | WA | 72ms | 46824kb | C++14 | 4.5kb | 2023-08-11 20:19:13 | 2023-08-11 20:19:14 |
Judging History
answer
#include <bits/stdc++.h>
#include <ext/pb_ds/assoc_container.hpp>
#include <ext/pb_ds/tree_policy.hpp>
#include <ext/rope>
#define ll long long
#define pb push_back
#define f first
#define s second
#define sz(x) (int)(x).size()
#define all(x) x.begin(), x.end()
#define rall(x) x.rbegin(), x.rend()
#define ios ios_base::sync_with_stdio(false);cin.tie(NULL)
#define ld long double
#define li __int128
using namespace std;
using namespace __gnu_pbds;
using namespace __gnu_cxx;
mt19937 rng(chrono::steady_clock::now().time_since_epoch().count());
template<class T> using ordered_set = tree<T, null_type, less<T>, rb_tree_tag,tree_order_statistics_node_update>; ///find_by_order(),order_of_key()
template<int D, typename T>struct vec : public vector<vec<D - 1, T>> {template<typename... Args>vec(int n = 0, Args... args) : vector<vec<D - 1, T>>(n, vec<D - 1, T>(args...)) {}};
template<typename T>struct vec<1, T> : public vector<T> {vec(int n = 0, T val = T()) : vector<T>(n, val) {}};
template<class T1,class T2> ostream& operator<<(ostream& os, const pair<T1,T2>& a) { os << '{' << a.f << ", " << a.s << '}'; return os; }
template<class T> ostream& operator<<(ostream& os, const vector<T>& a){os << '{';for(int i=0;i<sz(a);i++){if(i>0&&i<sz(a))os << ", ";os << a[i];}os<<'}';return os;}
template<class T> ostream& operator<<(ostream& os, const deque<T>& a){os << '{';for(int i=0;i<sz(a);i++){if(i>0&&i<sz(a))os << ", ";os << a[i];}os<<'}';return os;}
template<class T> ostream& operator<<(ostream& os, const set<T>& a) {os << '{';int i=0;for(auto p:a){if(i>0&&i<sz(a))os << ", ";os << p;i++;}os << '}';return os;}
template<class T> ostream& operator<<(ostream& os, const set<T,greater<T> >& a) {os << '{';int i=0;for(auto p:a){if(i>0&&i<sz(a))os << ", ";os << p;i++;}os << '}';return os;}
template<class T> ostream& operator<<(ostream& os, const multiset<T>& a) {os << '{';int i=0;for(auto p:a){if(i>0&&i<sz(a))os << ", ";os << p;i++;}os << '}';return os;}
template<class T> ostream& operator<<(ostream& os, const multiset<T,greater<T> >& a) {os << '{';int i=0;for(auto p:a){if(i>0&&i<sz(a))os << ", ";os << p;i++;}os << '}';return os;}
template<class T1,class T2> ostream& operator<<(ostream& os, const map<T1,T2>& a) {os << '{';int i=0;for(auto p:a){if(i>0&&i<sz(a))os << ", ";os << p;i++;}os << '}';return os;}
int ri(){int x;scanf("%i",&x);return x;}
void rd(int&x){scanf("%i",&x);}
void rd(long long&x){scanf("%lld",&x);}
void rd(double&x){scanf("%lf",&x);}
void rd(long double&x){scanf("%Lf",&x);}
void rd(string&x){cin>>x;}
void rd(char*x){scanf("%s",x);}
template<typename T1,typename T2>void rd(pair<T1,T2>&x){rd(x.first);rd(x.second);}
template<typename T>void rd(vector<T>&x){for(T&p:x)rd(p);}
template<typename C,typename...T>void rd(C&a,T&...args){rd(a);rd(args...);}
//istream& operator>>(istream& is,__int128& a){string s;is>>s;a=0;int i=0;bool neg=false;if(s[0]=='-')neg=true,i++;for(;i<s.size();i++)a=a*10+s[i]-'0';if(neg)a*=-1;return is;}
//ostream& operator<<(ostream& os,__int128 a){bool neg=false;if(a<0)neg=true,a*=-1;ll high=(a/(__int128)1e18);ll low=(a-(__int128)1e18*high);string res;if(neg)res+='-';if(high>0){res+=to_string(high);string temp=to_string(low);res+=string(18-temp.size(),'0');res+=temp;}else res+=to_string(low);os<<res;return os;}
const int N=1e6+5;
vector<int> di(N);
vector<bool> zavisi(N);
vector<int> od[N];
vector<int> val(N);
void test(){
int n=ri(),k=ri();
if((n&1)!=(k&1)){
printf("-1\n");
return;
}
for(int i=1;i<=n;i++){
val[i]=1;
}
int sum=n;
for(int i=2;i<=n;i++){
//printf("%i: mogu %i\n",i,sum-2*imam);
if(sum==k){
for(int i=1;i<=n;i++){
printf("%i ",val[i]);
}
printf("\n");
return;
}
if(zavisi[i]!=0){
continue;
}
assert(val[i]==1);
int sm=-2;
for(auto p:od[i]){
if(p>n){
break;
}
if(val[p]==1){
sm-=2;
}
else{
sm+=2;
}
}
//printf("%i: %i\n",i,sm);
if(sm<0&&sum+sm>=k){
sum+=sm;
val[i]=-1;
for(auto p:od[i]){
if(p>n){
break;
}
val[p]*=-1;
}
}
}
printf("-1\n");
}
int main()
{
di[1]=1;
for(int i=2;i<N;i++){
if(di[i]==0){
for(int j=i;j<N;j+=i){
di[j]=i;
}
}
}
for(int i=2;i<N;i++){
if(di[i]!=i){
int lst=N,cnt=0;
int tr=i;
while(tr!=1){
if(lst!=di[tr]){
if(cnt&1){
od[lst].pb(i);
}
lst=di[tr];
cnt=1;
}
else{
cnt++;
}
tr/=di[tr];
}
if(cnt&1){
od[lst].pb(i);
}
zavisi[i]=1;
}
}
int t=ri();
while(t--){
test();
}
return 0;
}
Details
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Test #1:
score: 100
Accepted
time: 42ms
memory: 46824kb
input:
4 4 2 10 0 10 1 10 10
output:
1 -1 1 1 1 -1 1 1 1 -1 -1 -1 1 -1 -1 1 1 1 1 1 1 1 1 1 1
result:
ok ok (4 test cases)
Test #2:
score: -100
Wrong Answer
time: 72ms
memory: 46724kb
input:
11475 1 0 1 1 2 0 2 1 2 2 3 0 3 1 3 2 3 3 4 0 4 1 4 2 4 3 4 4 5 0 5 1 5 2 5 3 5 4 5 5 6 0 6 1 6 2 6 3 6 4 6 5 6 6 7 0 7 1 7 2 7 3 7 4 7 5 7 6 7 7 8 0 8 1 8 2 8 3 8 4 8 5 8 6 8 7 8 8 9 0 9 1 9 2 9 3 9 4 9 5 9 6 9 7 9 8 9 9 10 0 10 1 10 2 10 3 10 4 10 5 10 6 10 7 10 8 10 9 10 10 11 0 11 1 11 2 11 3 11...
output:
-1 -1 -1 -1 1 1 -1 1 -1 1 -1 1 1 1 1 -1 -1 1 -1 1 -1 1 1 -1 1 1 1 1 -1 1 -1 -1 1 1 -1 1 -1 1 1 1 -1 1 1 1 1 1 1 -1 1 1 -1 -1 -1 1 -1 1 1 1 -1 -1 1 1 1 1 -1 1 -1 1 1 1 1 1 1 -1 1 -1 1 1 -1 -1 1 -1 1 -1 1 1 1 -1 1 -1 1 1 1 1 -1 1 1 -1 1 1 1 1 1 1 1 1 -1 1 1 -1 -1 1 -1 -1 1 -1 1 1 1 -...
result:
wrong answer ans finds the answer, but out doesn't (test case 2)