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Submission #519647

# Submission time Handle Problem Language Result Execution time Memory
519647 2022-01-26T22:42:51 Z sofapuden Sails (IOI07_sails) C++14
20 / 100
 34 ms 3128 KB 
#include<bits/stdc++.h>

using namespace std;

int main()
{
    ios_base::sync_with_stdio(0);cin.tie(0);cout.tie(0);
    int n; cin >> n;
    vector<pair<int,int>> v(n);
    for(auto &x : v)cin >> x.first >> x.second;
    set<pair<int,int>> S;
    S.insert({1,1});
	S.insert({1,2});
    int cn = 3;
    sort(v.begin(),v.end());
    for(int i = 0; i < n; ++i){

        int mx = (*S.rbegin()).first;
        int am = min(v[i].first+1,mx+v[i].second)-mx;
        if(v[i].second == am){
            S.erase(prev(S.end()));
            S.insert({mx+am,cn++});
            continue;
        }
        S.insert({mx+am,cn++});

        auto it = S.lower_bound({v[i].first-v[i].second+1,0});

        auto it2 = prev(it);

        S.insert({(*it2).first+v[i].second-(v[i].first-(*it).first+1),cn++});

		S.erase(it);
		S.erase(it2);
        S.insert({1,cn++});

    }
    vector<int> v2;
    for(auto x : S)v2.push_back(x.first);
    reverse(v2.begin(),v2.end());
    long long ans = 0;
    for(int i = 0; i < v2.size(); ++i){
        ans += 1ll * i * (v2[i]-1);
    }
    cout << ans << '\n';
}

Compilation message

sails.cpp: In function 'int main()':
sails.cpp:42:22: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   42 |     for(int i = 0; i < v2.size(); ++i){
      |                    ~~^~~~~~~~~~~

Subtask #1
0 / 5.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 204 KB Output is correct
2 Runtime error 1 ms 452 KB Execution killed with signal 6
3 Halted 0 ms 0 KB -

Subtask #2
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 204 KB Output is correct
2 Correct 0 ms 204 KB Output is correct

Subtask #3
0 / 10.0

# Verdict Execution time Memory Grader output
1 Runtime error 1 ms 460 KB Execution killed with signal 6
2 Halted 0 ms 0 KB -

Subtask #4
0 / 5.0

# Verdict Execution time Memory Grader output
1 Runtime error 1 ms 460 KB Execution killed with signal 6
2 Halted 0 ms 0 KB -

Subtask #5
0 / 10.0

# Verdict Execution time Memory Grader output
1 Runtime error 1 ms 460 KB Execution killed with signal 6
2 Halted 0 ms 0 KB -

Subtask #6
0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 6 ms 828 KB Output is correct
2 Runtime error 9 ms 1232 KB Execution killed with signal 6
3 Halted 0 ms 0 KB -

Subtask #7
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 20 ms 2528 KB Output is correct

Subtask #8
0 / 10.0

# Verdict Execution time Memory Grader output
1 Runtime error 15 ms 1760 KB Execution killed with signal 6
2 Halted 0 ms 0 KB -

Subtask #9
0 / 10.0

# Verdict Execution time Memory Grader output
1 Runtime error 19 ms 2528 KB Execution killed with signal 6
2 Halted 0 ms 0 KB -

Subtask #10
0 / 10.0

# Verdict Execution time Memory Grader output
1 Runtime error 23 ms 2888 KB Execution killed with signal 6
2 Halted 0 ms 0 KB -

Subtask #11
0 / 10.0

# Verdict Execution time Memory Grader output
1 Runtime error 34 ms 3128 KB Execution killed with signal 6
2 Halted 0 ms 0 KB -