Submission #335634

#	Time	Username	Problem	Language	Result	Execution time	Memory
335634		Bill_00	JOIRIS (JOI16_joiris)	C++14	100 / 100	66 ms	492 KiB

joiris

#include <bits/stdc++.h>
#define ff first
#define ss second
#define pb push_back
#define pp push 
#define mp make_pair
#define MOD 1000000007
#define INF 1000000000
typedef long long ll; 
using namespace std;
int a[51];
vector<int>s[51];
int c[51];
int main(){
	ios_base::sync_with_stdio(0);
	cin.tie(0);
	cout.tie(0);
	int n,k;
	cin >> n >> k;
	for(int i=1;i<=n;i++){
		cin >> a[i];
	}
	for(int i=1;i<=n-k+1;i++){
		for(int j=i;j<=i+k-1;j++){
			s[j].pb(i);
		}
	}
	for(int i=0;i<k;i++){
		c[1]=i;
		int height=(i+a[1])%k;
		for(int j=2;j<=n-k+1;j++){
			int sum=0;
			for(int p=0;p<(s[j].size()-1);p++){
				sum+=c[s[j][p]];
			}
			c[j]=((height-a[j]-sum)%k+k)%k;
		}
		int flag=0;
		for(int j=n-k+2;j<=n;j++){
			int sum=0;
			for(int p=0;p<s[j].size();p++){
				sum+=c[s[j][p]];
			}
			if(height!=((sum+a[j])%k)){
				flag++;
				break;
			}
		}
		if(!flag){
			// for(int j=1;j<=n-k+1;j++) cout << c[j] << ' ';
			vector<pair<int,int> >ans;
			for(int j=1;j<=n-k+1;j++){
				for(int p=1;p<=c[j];p++){
					int mx=0;
					for(int u=j;u<=j+k-1;u++){
						mx=max(a[u],mx);
					}
					ans.pb(mp(2,j));
					for(int u=1;u<=n;u++){
						if(u>=j && u<=j+k-1) continue;
						if(a[u]<=mx){
							// cout << mx << "KKk";
							while(a[u]<=mx){
								a[u]+=(k);
								ans.pb(mp(1,u));	
							}	
						} 
						a[u]--;
					}
				}
			}
			int mx=0;
			for(int j=1;j<=n;j++){
				mx=max(mx,a[j]);
			}
			for(int j=1;j<=n;j++){
				for(int p=1;p<=(mx-a[j])/k;p++){
					ans.pb(mp(1,j));
				}
			}
			cout << ans.size() << '\n';
			for(int i=0;i<ans.size();i++){
				cout << ans[i].ff << ' ' << ans[i].ss << '\n';
			}
			return 0;
		}
	}
	cout << -1;
}

Compilation message (stderr)

joiris.cpp: In function 'int main()':
joiris.cpp:33:17: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   33 |    for(int p=0;p<(s[j].size()-1);p++){
      |                ~^~~~~~~~~~~~~~~~
joiris.cpp:41:17: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   41 |    for(int p=0;p<s[j].size();p++){
      |                ~^~~~~~~~~~~~
joiris.cpp:82:17: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<std::pair<int, int> >::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   82 |    for(int i=0;i<ans.size();i++){
      |                ~^~~~~~~~~~~

• Subtask 1: 15 / 15
• Subtask 2: 15 / 15
• Subtask 3: 15 / 15
• Subtask 4: 55 / 55