Submission #891357

#	Time	Username	Problem	Language	Result	Execution time	Memory
891357		amirhoseinfar1385	Misspelling (JOI22_misspelling)	C++17	29 / 100	304 ms	162128 KiB

misspelling

#include<bits/stdc++.h>
using namespace std;
const long long maxn=500000+10,K=27,mod=1000000007;
long long ps[maxn][K],n,m;
vector<pair<long long,long long>>allq[maxn];

int main(){
	ios::sync_with_stdio(0);
	cin.tie(0);
	cout.tie(0);
	cin>>n>>m;
	for(long long i=0;i<m;i++){
		long long u,v;
		cin>>u>>v;
		if(u>v){
			swap(u,v);
			allq[u].push_back(make_pair(v,1));
		}
		else{
			allq[u].push_back(make_pair(v,0));
		}
	}
	for(long long i=1;i<K;i++){
		ps[1][i]=i;
	}
	set<pair<long long,long long>>stl,str;
	for(long long i=2;i<=n;i++){
		for(auto x:allq[i-1]){
			if(x.second==1){
				str.insert(make_pair(i-1,x.first));
			}
			else{
				stl.insert(make_pair(i-1,x.first));
			}
		}
		while((long long)str.size()>0&&(*str.rbegin()).second<i){
			str.erase(*str.rbegin());
		}
		while((long long)stl.size()>0&&(*stl.rbegin()).second<i){
			stl.erase(*stl.rbegin());
		}
		long long maxl=0,maxr=0;
		if((long long)str.size()>0){
			maxr=(*str.rbegin()).first;
		}
		if((long long)stl.size()>0){
			maxl=(*stl.rbegin()).first;
		}
		//cout<<maxl<<" "<<maxr<<" "<<i<<endl;
		if(maxl==maxr){
			for(long long j=0;j<K;j++){
				ps[i][j]=ps[i-1][j];
			}
			continue;
		}
		if(maxl==maxr){
			for(int j=1;j<K;j++){
				ps[i][j]=ps[i-1][K-1]-ps[i-1][j]+ps[i-1][j-1];
				ps[i][j]+=mod*10;
				ps[i][j]%=mod;
			}
			for(long long j=1;j<K;j++){
				ps[i][j]+=ps[i][j-1];
				ps[i][j]+=mod*10;
				ps[i][j]%=mod;
			}
			for(long long j=1;j<K;j++){
				ps[i][j]+=ps[i-1][j];
				ps[i][j]+=mod*10;
				ps[i][j]%=mod;
			}
			continue;
		}
		if(maxl>maxr){
			for(long long j=1;j<K;j++){
				ps[i][j]=ps[i-1][K-1]-ps[maxl][K-1]-(ps[i-1][j]-ps[i-1][j-1]-(ps[maxl][j]-ps[maxl][j-1]));
			}
			for(long long j=1;j<K;j++){
				ps[i][j]+=ps[maxl][K-1]-ps[maxl][j]-(ps[maxr][K-1]-ps[maxr][j]);
			}
			for(long long j=1;j<K;j++){
				ps[i][j]+=ps[i][j-1];
				ps[i][j]+=mod*10;
				ps[i][j]%=mod;
			}
			for(long long j=1;j<K;j++){
				ps[i][j]+=ps[i-1][j];
				ps[i][j]+=mod*10;
				ps[i][j]%=mod;
			}
		}
		else{
			swap(maxl,maxr);
			for(long long j=1;j<K;j++){
				ps[i][j]=ps[i-1][K-1]-ps[maxl][K-1]-(ps[i-1][j]-ps[i-1][j-1]-(ps[maxl][j]-ps[maxl][j-1]));
			}
			for(long long j=1;j<K;j++){
			//	cout<<j<<" "<<maxr<<" "<<ps[i-1][j-1]<<" "<<ps[maxr][j-1]<<endl;
				ps[i][j]+=ps[maxl][j-1]-(ps[maxr][j-1]);
			}
			for(long long j=1;j<K;j++){
				ps[i][j]+=ps[i][j-1];
				ps[i][j]+=mod*10;
				ps[i][j]%=mod;
			}
			for(long long j=1;j<K;j++){
				ps[i][j]+=ps[i-1][j];
				ps[i][j]+=mod*10;
				ps[i][j]%=mod;
			}
		}
	}
//	for(long long i=1;i<=n;i++){
//		for(long long j=1;j<K;j++){
//			cout<<ps[i][j]<<" ";
//		}
//		cout<<"\n";
//	}
	cout<<ps[n][K-1]<<endl;
}

• Subtask 1: 0 / 8
• Subtask 2: 0 / 20
• Subtask 3: 29 / 29
• Subtask 4: 0 / 32
• Subtask 5: 0 / 11