제출 #1062509

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
1062509		zh_h	Snail (NOI18_snail)	C++17	0 / 100	7 ms	608 KiB

snail

#include <bits/stdc++.h>
#define lint long long
#define pb push_back
#define mp make_pair
using namespace std;
lint MOD = 1e9 + 7;
int INF = 1e9;



int main() {
    ios_base::sync_with_stdio(false);
    cin.tie(NULL);

    lint h, p;
    cin >> h >> p;
    vector<lint> v;
    lint sum = 0;
    for(lint i = 0; i < p; i ++){
        lint temp;
        cin >> temp;
        v.pb(temp);
        sum += temp;
    }

    if(sum < 0){cout << -1 << " " << -1;}
    else if(sum == 0){
        lint h1 = 0;
        lint is_valid = -1;
        for(lint i = 0; i < p; i ++){
            if(h1 >= h){is_valid = i; break;}
            h1+=v[i];
            if(h1 < 0){h1 = 0;}
        }
        if(is_valid != -1){cout << 0 << " " << is_valid;}
        else cout << -1 << " " << -1;
    }
    else{
        lint m = 0;
        lint temp = 0;
        for(lint i = 0; i < p; i ++){
            temp += v[i];
            m = max(m, temp);
        }
        // if(m >= h){
        //     lint h1 = 0;
        //     lint is_valid = -1;
        //     for(lint i = 0; i < p; i ++){
        //         if(h1 >= h){is_valid = i; break;}
        //         h1+=v[i];
        //         if(h1 < 0){h1 = 0;}
        //     }
        //     cout << 0 << " " << is_valid;
        // }
        // else{
            // lint days = (h-m+sum-1)/sum;
            // lint thatday = days*sum;
            // lint valid;
            // while(thatday >= h){thatday-=sum; days--;}
            // while(thatday + m < h){thatday += sum; days++;}
            
            // for(lint i = 0; i < p; i ++){
            //     thatday += v[i];
            //     if(thatday >= h){valid = i; break;}
            // }
            // cout << days << " " << valid;
        // }
        lint act = h-m;
        lint days = 1;
        lint total = sum;
        while(total < act){
            days++;
            total += sum;
        }
        lint phase;
        
        for(lint i = 0; i < p; i ++){
            total += v[i];
            if(total >= h){
                phase = i; break;
            }
        }
        cout << days << " " << phase;
    }

    return 0;
}

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