Submission #1193291

#	Time	Username	Problem	Language	Result	Execution time	Memory
1193291		thelegendary08	Toilets (JOI16_toilets)	C++17	0 / 100	0 ms	392 KiB

toilets

#include<bits/stdc++.h>
#define pb push_back
#define mp make_pair
#define int long long
#define vi vector<int>
#define vvi vector<vector<int>>
#define pii pair<int, int>
#define vpii vector<pair<int, int>>
#define vc vector<char>
#define vb vector<bool>
#define mii map<int,int>
#define f0r(i,n) for(int i=0;i<n;i++)
#define FOR(i,k,n) for(int i=k;i<n;i++)
#define all(v) (v).begin(),(v).end()
#define rall(v) (v).rbegin(),(v).rend()
#define in(a) int a; cin>>a
#define in2(a,b) int a,b; cin>>a>>b
#define in3(a,b,c) int a,b,c; cin>>a>>b>>c
#define in4(a,b,c,d) int a,b,c,d; cin>>a>>b>>c>>d
#define vin(v,n); vi v(n); f0r(i,n){cin>>v[i];}
#define out(a) cout<<a<<'\n'
#define out2(a,b) cout<<a<<' '<<b<<'\n'
#define out3(a,b,c) cout<<a<<' '<<b<<' '<<c<<'\n'
#define out4(a,b,c,d) cout<<a<<' '<<b<<' '<<c<<' '<<d<<'\n'
#define pout(a) cout<<a.first<<' '<<a.second<<'\n'
#define vout(v) for(auto u : v){cout<<u<<' ';} cout<<'\n'
#define dout(a) cout<<a<<' '<<#a<<'\n'
#define dout2(a,b) cout<<a<<' '<<#a<<' '<<b<<' '<<#b<<'\n'
#define yn(x); if(x){cout<<"YES"<<'\n';}else{cout<<"NO"<<'\n';}
const int leg = 1e9 + 7;
const int mod = 998244353;
using namespace std;
 
signed main(){
	ios::sync_with_stdio(false);
	cin.tie(NULL);
	//ifstream cin(".in");
	//ofstream cout(".out");
	in2(n,m);
	vector<pair<string,int>>v;
	f0r(i,m){
		string s;
		int x;
		cin>>s>>x;
		v.pb(mp(s,x));
	}
	int cur = 0;
	int mn = 0;
	int ms = 0;
	int fs = 0;
	for(int i = m-1; i>=0; i--){
		int run = 0;
		int mnrun = 0;
		string s = v[i].first;
		int fc = 0;
		int mc = 0;
		for(int j = s.size() - 1; j>=0; j--){
			if(s[j] == 'F'){
				run++;
				fc++;
			}
			else{
				run--;
				mc++;
			}
			mnrun = min(mnrun, run);
		}
		ms += mc * v[i].second;
		fs += fc * v[i].second;
		f0r(j, v[i].second){
			mn = min(mn, j * run + cur + mnrun);
		}
		cur += v[i].second * run;
	}
	
	if(ms > fs){
		out(-1);
	}
	else out(-mn - 1);
}

• Subtask 1: 0 / 14
• Subtask 2: 0 / 22
• Subtask 3: 0 / 64