제출 #936198

#제출 시각아이디문제언어결과실행 시간메모리
936198AdamGSJOIRIS (JOI16_joiris)C++17
100 / 100
1 ms604 KiB
#include<bits/stdc++.h>
using namespace std;
typedef long double ld;
typedef long long ll;
#define rep(a, b) for(int a = 0; a < (b); ++a)
#define st first
#define nd second
#define pb push_back
#define all(a) a.begin(), a.end()
const int LIM=57;
int T[LIM], n, k;
vector<pair<int,int>>P;
void wypisz() {
  rep(i, n) if(T[i]!=0) {
    cout << -1 << '\n';
    exit(0);
  }
  while(P.size()>10000) P.pb({1, 0});
  cout << P.size() << '\n';
  for(auto i : P) cout << i.st << " " << i.nd << '\n';
  exit(0);
}
void norm() {
  int ma=0;
  rep(i, n) ma=max(ma, T[i]);
  rep(i, n) {
    while(T[i]<=ma-k) {
      T[i]+=k;
      P.pb({1, i+1});
    }
  }
  int mi=T[0];
  rep(i, n) mi=min(mi, T[i]);
  rep(i, n) T[i]-=mi;
}
void poziom(int x) {
  int ma=0;
  rep(i, k) ma=max(ma, T[x+i]+1);
  P.pb({2, x+1});
  rep(i, n) if(i<x || x+k<=i) {
    if(T[i]<ma) {
      T[i]+=k;
      P.pb({1, i+1});
    }
    --T[i];
  }
  
}
int main() {
  //ios_base::sync_with_stdio(0); cin.tie(0);
  cin >> n >> k;
  rep(i, n) cin >> T[i];
  norm();
  if(n==k) {
    while(T[0]<k) {
      P.pb({2, 1});
      rep(i, n) ++T[i];
    }
    norm();
    wypisz();
  }
  rep(i, n-k-1) {
    int x=(T[i]-T[i+1]+k)%k;
    rep(j, x) poziom(i+1);
    norm();
  }
  int x=(T[n-k-1]-T[n-k]+k*100)%k;
  rep(i, x) poziom(n-k);
  norm();
  if(n%k==0) {
    while(T[n-1]<k) {
      rep(i, k) ++T[n-i-1];
      P.pb({2, n-k+1});
    }
    norm();
    wypisz();
  }
  int ile=0;
  rep(i, n-1) if(T[i]!=T[n-1]) ++ile;
  if(ile%k==0) {
    rep(i, n-k+1) {
      while(T[i]%k!=T[n-1]%k) {
        P.pb({2, i+1});
        rep(j, k) ++T[i+j];
      }
    }
  } else if((n-ile)%k==0) {
    for(int i=n-1; i>=k; --i) {
      while(T[i]%k!=T[0]%k) {
        P.pb({2, i-k+2});
        rep(j, k) ++T[i-j];
      }
    }
  }
  norm();
  wypisz();
}
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