#include <bits/stdc++.h>
using namespace std;
#define rep(i, n) for(long long i=0;i<(long long)(n);i++)
#define REP(i,k,n) for(long long i=k;i<(long long)(n);i++)
#define all(a) a.begin(),a.end()
#define rsort(a) {sort(all(a));reverse(all(a));}
#define pb emplace_back
#define lb(v,k) (lower_bound(all(v),(k))-v.begin())
#define fi first
#define se second
#define dame(a) {out(a);return 0;}
#define dupli(a) {sort(all(a));a.erase(unique(all(a)),a.end());}
typedef long long ll;
typedef pair<ll,ll> P;
typedef tuple<ll,ll,ll> PP;
using vi=vector<ll>;
using vvi=vector<vi>;
using vp=vector<P>;
using vvp=vector<vp>;
using vb=vector<bool>;
using vvb=vector<vb>;
const ll inf=1001001001001001001;
template<class T> bool chmin(T&a,T b){if(a>b){a=b;return true;}return false;}
template<class T> bool chmax(T&a,T b){if(a<b){a=b;return true;}return false;}
template<class T> void out(T a){cout<<a<<'\n';}
template<class T> void outp(T a){cout<<'('<<a.fi<<','<<a.se<<')'<<'\n';}
template<class T> void outvp(T v){rep(i,v.size())cout<<'('<<v[i].fi<<','<<v[i].se<<')';cout<<'\n';}
template<class T> void outvvp(T v){rep(i,v.size())outvp(v[i]);}
template<class T> void outv(T v){rep(i,v.size()){if(i)cout<<' ';cout<<v[i];}cout<<'\n';}
template<class T> void outvv(T v){rep(i,v.size())outv(v[i]);}
vp ans;
void tate(int i){
ans.pb(1,i+1);
}
void yoko(int i){
ans.pb(2,i+1);
}
int main(){
ll n,k;cin>>n>>k;
assert(k==2&&n%2==0);
vi v(n);rep(i,n)cin>>v[i];
ll ma=0;
rep(i,n)chmax(ma,v[i]);
rep(i,n)while(v[i]<ma){
tate(i);
v[i]+=k;
}
rep(i,n)v[i]-=ma;
auto check=[&](){
bool done=true;
rep(i,n)if(v[i])done=false;
if(done){
out(ans.size());for(auto x:ans)cout<<x.fi<<' '<<x.se<<endl;
}
return done;
};
if(check())return 0;
while(true){
bool found=false;
for(int i=n-1;i>0;i--)if(v[i]==0&&v[i-1]==1){
yoko(i-1);
rep(j,n)if(j!=i-1)tate(j);
v[i]=1;v[i-1]=0;
found=true;
break;
}
if(!found)break;
}
ll cnt=0;
rep(i,n)if(v[i])cnt++;
assert(cnt!=0&&cnt!=n);
rep(i,n-1)assert(v[i]==0||v[i+1]==1);
if(cnt%2==1&&n%2==0)dame(-1);
if(cnt%2==0&&n%2==1){
rep(i,n){
if(v[i]==0)tate(i);
v[i]=1-v[i];
}
}
rep(i,n-1)if(v[i]==0){
assert(v[i+1]==0);
yoko(i);
v[i]=1;v[i+1]=1;
}
assert(v[n-1]==1);
assert(ans.size()<=1000);
out(ans.size());
for(auto x:ans)cout<<x.fi<<' '<<x.se<<endl;
}
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
1 ms |
364 KB |
Output is correct |
2 |
Correct |
0 ms |
364 KB |
Output is correct |
3 |
Correct |
1 ms |
364 KB |
Output is correct |
4 |
Correct |
1 ms |
364 KB |
Output is correct |
5 |
Correct |
1 ms |
748 KB |
Output is correct |
6 |
Correct |
1 ms |
748 KB |
Output is correct |
7 |
Correct |
1 ms |
364 KB |
Output is correct |
8 |
Correct |
1 ms |
364 KB |
Output is correct |
9 |
Correct |
1 ms |
384 KB |
Output is correct |
10 |
Correct |
1 ms |
492 KB |
Output is correct |
11 |
Runtime error |
1 ms |
748 KB |
Execution killed with signal 6 (could be triggered by violating memory limits) |
12 |
Halted |
0 ms |
0 KB |
- |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Runtime error |
1 ms |
492 KB |
Execution killed with signal 6 (could be triggered by violating memory limits) |
2 |
Halted |
0 ms |
0 KB |
- |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
1 ms |
364 KB |
Output is correct |
2 |
Correct |
0 ms |
364 KB |
Output is correct |
3 |
Correct |
1 ms |
364 KB |
Output is correct |
4 |
Correct |
1 ms |
364 KB |
Output is correct |
5 |
Correct |
1 ms |
748 KB |
Output is correct |
6 |
Correct |
1 ms |
748 KB |
Output is correct |
7 |
Correct |
1 ms |
364 KB |
Output is correct |
8 |
Correct |
1 ms |
364 KB |
Output is correct |
9 |
Correct |
1 ms |
384 KB |
Output is correct |
10 |
Correct |
1 ms |
492 KB |
Output is correct |
11 |
Runtime error |
1 ms |
748 KB |
Execution killed with signal 6 (could be triggered by violating memory limits) |
12 |
Halted |
0 ms |
0 KB |
- |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
1 ms |
364 KB |
Output is correct |
2 |
Correct |
0 ms |
364 KB |
Output is correct |
3 |
Correct |
1 ms |
364 KB |
Output is correct |
4 |
Correct |
1 ms |
364 KB |
Output is correct |
5 |
Correct |
1 ms |
748 KB |
Output is correct |
6 |
Correct |
1 ms |
748 KB |
Output is correct |
7 |
Correct |
1 ms |
364 KB |
Output is correct |
8 |
Correct |
1 ms |
364 KB |
Output is correct |
9 |
Correct |
1 ms |
384 KB |
Output is correct |
10 |
Correct |
1 ms |
492 KB |
Output is correct |
11 |
Runtime error |
1 ms |
748 KB |
Execution killed with signal 6 (could be triggered by violating memory limits) |
12 |
Halted |
0 ms |
0 KB |
- |