oj.uz

Submission #805011

# Submission time Handle Problem Language Result Execution time Memory
805011 2023-08-03T12:26:15 Z moe_solution(#10139) Shifty Grid (CCO17_shifty) C++17
25 / 25
 42 ms 1728 KB 
#pragma GCC optimize("O3")
#pragma GCC optimize("Ofast")
#pragma GCC optimize("unroll-loops")
#pragma GCC target("sse,sse2,sse3,ssse3,sse4,sse4.1,sse4.2,popcnt,abm,mmx,avx,avx2,fma")
#include <bits/stdc++.h>
using namespace std;
//#include <atcoder/all>
//using namespace atcoder;
//#include <bits/extc++.h>
//using namespace __gnu_pbds;
#ifdef LOCAL
#include "debug.h"
#else
#define debug(...) 42
#endif
using ll=long long;
using ull=unsigned long long;
using db=long double;
using pii=array<int,2>;
using pll=array<ll,2>;
using pdb=array<db,2>;
using tii=array<int,3>;
using tll=array<ll,3>;
using tdb=array<db,3>;
using ti4=array<int,4>;
using tl4=array<ll,4>;
using td4=array<db,4>;
//using oset=tree<int,null_type,less<int>,rb_tree_tag,tree_order_statistics_node_update>;
mt19937 rng(chrono::steady_clock::now().time_since_epoch().count());
//uniform_int_distribution<> gen(1,100);
template <int MOD_> struct modnum{
private:
	int v;
public:
	static const int MOD = MOD_;
	modnum() : v(0) {}
	modnum(ll v_) : v(int(v_ % MOD)) { if (v < 0) v += MOD; }
	explicit operator int () const { return v; }
	friend bool operator == (const modnum& a, const modnum& b) { return a.v == b.v; }
	friend bool operator != (const modnum& a, const modnum& b) { return a.v != b.v; }
	friend bool operator < (const modnum& a, const modnum& b) { return a.v < b.v; }
	friend bool operator <= (const modnum& a, const modnum& b) { return a.v <= b.v; }
	friend bool operator > (const modnum& a, const modnum& b) { return a.v > b.v; }
	friend bool operator >= (const modnum& a, const modnum& b) { return a.v >= b.v; }
	modnum& operator += (const modnum& o) {
		v += o.v;
		if (v >= MOD) v -= MOD;
		return *this;
	}
	modnum& operator -= (const modnum& o) {
		v -= o.v;
		if (v < 0) v += MOD;
		return *this;
	}
	modnum& operator *= (const modnum& o) {
		v = int(ll(v) * ll(o.v) % MOD);
		return *this;
	}
	friend modnum pow(modnum a, ll p) {
		modnum ans = 1;
		for (; p; p /= 2, a *= a) if (p&1) ans *= a;
		return ans;
	}
	modnum operator ~ () const {
		modnum res;
		res.v = pow((modnum)v, MOD - 2).v;
		return res;
	}
	modnum& operator /= (const modnum& o) {
		return *this *= (~o);
	}
	modnum operator-() const { return modnum(-v); }
	modnum& operator++() { return *this += 1; }
	modnum operator++(int){ modnum tmp=*this; ++*this; return tmp; }
	modnum& operator--() { return *this -= 1; }
	modnum operator--(int){ modnum tmp=*this; --*this; return tmp; }
	friend modnum operator + (const modnum& a, const modnum& b) { return modnum(a) += b; }
	friend modnum operator - (const modnum& a, const modnum& b) { return modnum(a) -= b; }
	friend modnum operator * (const modnum& a, const modnum& b) { return modnum(a) *= b; }
	friend modnum operator / (const modnum& a, const modnum& b) { return modnum(a) /= b; }
	friend ostream& operator<<(std::ostream& os, const modnum& o)
	{
		os << o.v;
		return os;
	}
	friend istream& operator>>(std::istream& is, modnum& o)
	{
		is >> o.v;
		return is;
	}
};
const ll mod=998244353,inf=1e18;
const int N=105;
using mi=modnum<mod>;
int n,m,a[N][N],b[N][N];
pii inv[N*N];
vector<tii> ans;
void output(string s=""){
	cout<<s<<endl;
	for(int i=0;i<n;i++) for(int j=0;j<m;j++) cout<<a[i][j]<<" \n"[j==m-1];
}
void rMove(int i,int r){
	r+=n*m;
	r%=m;
	if(!r) return;
	ans.push_back({1,i+1,r});
	for(int j=0;j<m;j++) b[i][(j+r)%m]=a[i][j];
	for(int j=0;j<m;j++){
		a[i][j]=b[i][j];
		inv[a[i][j]]={i,j};
	}
}
void cMove(int j,int c){
	c+=n*m;
	c%=n;
	if(!c) return;
	ans.push_back({2,j+1,c});
	for(int i=0;i<n;i++) b[(i+c)%n][j]=a[i][j];
	for(int i=0;i<n;i++){
		a[i][j]=b[i][j];
		inv[a[i][j]]={i,j};
	}
}
int main(){
	ios::sync_with_stdio(false); cin.tie(0);
	cin>>n>>m;
	vector<int> v(n*m);
	for(int i=0;i<n*m;i++) v[i]=i;
	shuffle(v.begin(),v.end(),rng);
	int p=0;
	for(int i=0;i<n;i++){
		for(int j=0;j<m;j++){
			a[i][j]=v[p++];
			cin>>a[i][j];
			b[i][j]=a[i][j];
			inv[a[i][j]]={i,j};
		}
	}
	//output("Start");
	// Step 1
	for(int i=0;i<n-1;i++){
		for(int j=0;j<m-1;j++){
			auto [x,y]=inv[(n-2-i)*m+j];
			rMove(x,m-1-y);
			cMove(m-1,n-1-x);
			if(x!=n-1) rMove(x,y+1);
			rMove(n-1,j+1);
			cMove(j,1);
			//output("Step "+to_string(i)+" "+to_string(j));
		}
		//output("Step "+to_string(i));
	}
	//output("After Step 1");
	uniform_int_distribution<> gen1(0,m-1);
	uniform_int_distribution<> gen2(0,n-1);
	do{
		for(int t=0;t<100;t++){
			rMove(n-1,gen1(rng));
			cMove(m-1,gen2(rng));
		}
		// Step 2
		for(int j=0;j<m;j++){
			auto [x,y]=inv[(n-1)*m+j];
			if(x!=n-1){
				rMove(n-1,j);
				cMove(m-1,n-1-x);
			}
			rMove(n-1,m-1-y);
			cMove(m-1,1);
			if(j) rMove(n-1,m-2-inv[(n-1)*m+j-1][1]);
			cMove(m-1,n-1);
		}
		//output("After Step 2");
		// Step 3
		for(int i=0;i<n;i++){
			int x=inv[m*i+m-1][0];
			if(!i){
				cMove(m-1,n-x);
				continue;
			}
			if(x==i) continue;
			cMove(m-1,n-1-x);
			rMove(n-1,m/2);
			int v=a[n-1][m-1];
			x=inv[m*(i-1)+m-1][0];
			cMove(m-1,n-2-x);
			rMove(n-1,m/2);
			x=inv[v][0];
			cMove(m-1,n-1-x);
			rMove(n-1,m/2);
			x=inv[m-1][0];
			cMove(m-1,n-x);
			//output(to_string(i));
		}
		//output("After Step 3");
	}while(a[n-1][0]!=(n-1)*m);
	cout<<ans.size()<<"\n";
	for(auto [x,y,z]: ans) cout<<x<<" "<<y<<" "<<z<<"\n";
	//output("Result");
	return 0;
}

Subtask #1
5.0 / 5.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 340 KB Output is correct
2 Correct 1 ms 340 KB Output is correct
3 Correct 1 ms 340 KB Output is correct
4 Correct 0 ms 340 KB Output is correct
5 Correct 0 ms 340 KB Output is correct
6 Correct 0 ms 340 KB Output is correct
7 Correct 1 ms 340 KB Output is correct
8 Correct 1 ms 340 KB Output is correct
9 Correct 0 ms 340 KB Output is correct
10 Correct 0 ms 340 KB Output is correct
11 Correct 0 ms 340 KB Output is correct
12 Correct 0 ms 340 KB Output is correct

Subtask #2
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 340 KB Output is correct
2 Correct 1 ms 340 KB Output is correct
3 Correct 0 ms 340 KB Output is correct
4 Correct 0 ms 340 KB Output is correct
5 Correct 39 ms 1660 KB Output is correct
6 Correct 37 ms 1536 KB Output is correct
7 Correct 40 ms 1728 KB Output is correct
8 Correct 42 ms 1560 KB Output is correct
9 Correct 37 ms 1604 KB Output is correct

Subtask #3
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 340 KB Output is correct
2 Correct 1 ms 340 KB Output is correct
3 Correct 1 ms 340 KB Output is correct
4 Correct 0 ms 340 KB Output is correct
5 Correct 0 ms 340 KB Output is correct
6 Correct 0 ms 340 KB Output is correct
7 Correct 1 ms 340 KB Output is correct
8 Correct 1 ms 340 KB Output is correct
9 Correct 0 ms 340 KB Output is correct
10 Correct 0 ms 340 KB Output is correct
11 Correct 0 ms 340 KB Output is correct
12 Correct 0 ms 340 KB Output is correct
13 Correct 0 ms 340 KB Output is correct
14 Correct 1 ms 340 KB Output is correct
15 Correct 0 ms 340 KB Output is correct
16 Correct 0 ms 340 KB Output is correct
17 Correct 39 ms 1660 KB Output is correct
18 Correct 37 ms 1536 KB Output is correct
19 Correct 40 ms 1728 KB Output is correct
20 Correct 42 ms 1560 KB Output is correct
21 Correct 37 ms 1604 KB Output is correct
22 Correct 38 ms 1612 KB Output is correct
23 Correct 38 ms 1656 KB Output is correct
24 Correct 37 ms 1604 KB Output is correct
25 Correct 38 ms 1668 KB Output is correct
26 Correct 37 ms 1688 KB Output is correct
27 Correct 42 ms 1636 KB Output is correct
28 Correct 36 ms 1520 KB Output is correct
29 Correct 40 ms 1680 KB Output is correct
30 Correct 38 ms 1516 KB Output is correct
31 Correct 37 ms 1604 KB Output is correct
32 Correct 39 ms 1584 KB Output is correct
33 Correct 5 ms 724 KB Output is correct
34 Correct 6 ms 748 KB Output is correct
35 Correct 1 ms 340 KB Output is correct
36 Correct 24 ms 1372 KB Output is correct
37 Correct 6 ms 596 KB Output is correct
38 Correct 5 ms 724 KB Output is correct
39 Correct 5 ms 724 KB Output is correct
40 Correct 13 ms 976 KB Output is correct
41 Correct 6 ms 660 KB Output is correct
42 Correct 4 ms 596 KB Output is correct
43 Correct 22 ms 1164 KB Output is correct
44 Correct 3 ms 596 KB Output is correct
45 Correct 22 ms 1312 KB Output is correct
46 Correct 9 ms 836 KB Output is correct