제출 #970251

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
970251		NoMercy	Sails (IOI07_sails)	C++14	0 / 100	1069 ms	8996 KiB

sails

#include <bits/stdc++.h>
using namespace std;
 
    
int TIME = clock();
 
#define file \
            freopen("in.txt" , "r" , stdin); \
            freopen("out.txt" , "w" , stdout);
 
typedef long long ll;
 
void test_case () {
    int n , mx = 0;
    cin >> n;
    vector<array<int , 2>> a(n);
    for (int i = 0;i < n;i ++) {
        cin >> a[i][0] >> a[i][1];
        mx = max(mx , a[i][0]);
    }
    set<pair<int , int>> s;
    for (int i = 0;i < mx;i ++) {
        s.insert({0 , i});
    }
    ll res = 0;
    for (int i = n - 1;i >= 0;i --) {
        vector<pair<int , int>> _s;
        while (a[i][1] --) {
            assert((int)s.size() > 0);
            auto it = *s.begin();
            s.erase(s.begin());
            if (it.second >= a[i][0]) {
                a[i][1] ++;
                _s.push_back(it);
                continue;
            }
            res += it.first;
            _s.push_back({it.first + 1 , it.second});
        }
        for (int j = 0;j < (int)_s.size();j ++) {
            s.insert(_s[j]);
        }
    }
    cout << res << "\n";
}
 
int32_t main () {
 
   ////     file
    
 
    int t = 1;
    // cin >> t;
 
    while (t --) {
        test_case();
    }
 
    cerr << "\nTime elapsed: " << (clock() - TIME) * 1000.0 / CLOCKS_PER_SEC << " ms\n";
    return 0;
}

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