#include <bits/stdc++.h>
#define X first
#define Y second
#define MP make_pair
#define ll long long
using namespace std;
const int N = 52;
const ll INF = 1e18;
int a[N], b[N], d[N], n, k;
vector< pair<int, int> > ans;
int main () {
ios::sync_with_stdio(0), cin.tie(0), cout.tie(0);
cin >> n >> k;
for(int i = 0;i < n;i++)
cin >> a[i], b[i % k] = (b[i % k] + a[i]) % k;
for(int i = 0;i < n % k;i++){
if(b[i] != b[0])
return cout << -1, 0;
}
for(int i = n % k;i < k;i++){
if(b[i] != b[k - 1])
return cout << -1, 0;
}
for(int i = 1;i < n;i++){
while(a[i] < a[i - 1]){
a[i] += k;
ans.push_back(MP(1, i));
}
}
for(int i = k - 1;i + 1 < n;i++){
for(;a[i] < a[i + 1];a[i]++){
for(int j = i - k + 1;j >= 0;j -= k){
ans.push_back(MP(2, j));
}
d[i % k]--;
}
} d[k - 1] = 0;
for(int i = k - 2;i >= 0;i--)
d[i] += d[i + 1];
for(int i = 0;i < n;i++){
while(d[i] < 0)
d[i] += k, ans.push_back(MP(1, i));
}
if(n % k){
for(int i = n - k;i >= 0;i -= k){
for(int j = 0;j < d[0];j++){
ans.push_back(MP(2, i));
}
}
}
cout << ans.size() << "\n";
for(pair<int, int> v: ans)
cout << v.X << " " << v.Y + 1 << "\n";
}
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
1 ms |
364 KB |
Output is correct |
2 |
Correct |
1 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 |
0 ms |
364 KB |
Output is correct |
6 |
Correct |
0 ms |
364 KB |
Output is correct |
7 |
Incorrect |
1 ms |
364 KB |
Output isn't correct |
8 |
Halted |
0 ms |
0 KB |
- |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Incorrect |
1 ms |
364 KB |
Output isn't correct |
2 |
Halted |
0 ms |
0 KB |
- |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
1 ms |
364 KB |
Output is correct |
2 |
Correct |
1 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 |
0 ms |
364 KB |
Output is correct |
6 |
Correct |
0 ms |
364 KB |
Output is correct |
7 |
Incorrect |
1 ms |
364 KB |
Output isn't correct |
8 |
Halted |
0 ms |
0 KB |
- |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
1 ms |
364 KB |
Output is correct |
2 |
Correct |
1 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 |
0 ms |
364 KB |
Output is correct |
6 |
Correct |
0 ms |
364 KB |
Output is correct |
7 |
Incorrect |
1 ms |
364 KB |
Output isn't correct |
8 |
Halted |
0 ms |
0 KB |
- |