Submission #1074803

#	Time	Username	Problem	Language	Result	Execution time	Memory
1074803		jundi	Snail (NOI18_snail)	C++17	62 / 100	2 ms	616 KiB

snail

#include <bits/stdc++.h>
using namespace std;

bool myCmp(int i, int j) 
{ return(i>j); }
void printArray(int arr[], int size){
  int i;for (i = 0; i < size; i++)
	{ cout << arr[i] << " ";cout << endl; }
}//means "if n is non-zero" or true
#define asort(a,x) sort(a,a+x,myCmp)//big to small
#define pb(x) push_back(x)
#define vsort(v) sort(v.begin(),v.end())
//string=vector 
#define sp " "
#define ll long long int
ll t,n;
void solve(){//谢
	cin>>t>>n;ll a[n],cnt=0,tmp=0,tmp2=0,tp=n;
	for(ll i=0;i<n;i++){
		cin>>a[i];
		tmp+=a[i];tmp2+=a[i];
		if(tmp<0){ tmp=0; }
		if(tmp>=t){ cout<<cnt<<" "<<i;return; }
	}

	if(tmp2<=0){
		ll checker = 0;
		for(ll j=0;j<2;j++){
			for(ll i=0;i<n;i++){
				checker+=a[i];
				if(checker<0) {checker = 0;}
				if(checker>=t){ cout<<j<<" "<<i;return;}
			}
		}cout<<-1<<" "<<-1;return; 
	}

	ll highest = 0, count = tmp;
	for(ll i = 0; i < n; i ++){
			count += a[i];
			if(highest>count)
			{ tp=i; }
			highest = max(highest, count);
	}t-=highest;cnt=t/tmp2;cnt++;

	if(t%tmp2!=0){
		t-=(cnt-1)*tmp2;cnt++;
		for(int i=0;i<n;i++){
			t-=a[i];tp=i;
			if(t<=0)
			{ cout<<cnt<<" "<<tp;return; }
		}
	}
	else{
		for(int i=0;i<n;i++){
			if(a[i]>0){ tp=i; }
		}
	}
	cout<<cnt<<" "<<tp;
}

int main() {
	ios::sync_with_stdio(0);cin.tie(0);
	solve();cout<<endl;
	return 0;
}

• Subtask 1: 11 / 11
• Subtask 2: 9 / 9
• Subtask 3: 25 / 25
• Subtask 4: 17 / 17
• Subtask 5: 0 / 38