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Submission #549064

# Submission time Handle Problem Language Result Execution time Memory
549064 2022-04-15T04:35:49 Z Belgutei Lightning Rod (NOI18_lightningrod) C++17
100 / 100
 1735 ms 95472 KB 
#include<bits/stdc++.h>

using namespace std;

#define ll long long
#define ff first
#define ss second
#define pb push_back
#define mk make_pair
#define IOS ios_base::sync_with_stdio(0); cin.tie(0); cout.tie(0);

int n;
int a,b;
map<int,int> mp;
int mx = -1;
int ans;

stack<int> s;

int main(){
    IOS
    cin >> n;
    for(int i = 0; i < n; i++){
        cin >> a >> b;
        if(a + b <= mx){
            continue;
        }
        mx = max(mx,a+b);
        int val = a - b;
        while(s.size()>0){
            if(s.top() >= val){
                s.pop();
            }
            else break;
        }
        s.push(val);
    }

    cout << s.size();
}

Subtask #1
4.0 / 4.0

# Verdict Execution time Memory Grader output
1 Correct 1287 ms 39992 KB Output is correct
2 Correct 1280 ms 39976 KB Output is correct
3 Correct 1258 ms 38744 KB Output is correct

Subtask #2
7.0 / 7.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 212 KB Output is correct
2 Correct 0 ms 212 KB Output is correct
3 Correct 0 ms 320 KB Output is correct
4 Correct 1 ms 212 KB Output is correct
5 Correct 1 ms 316 KB Output is correct
6 Correct 1 ms 212 KB Output is correct
7 Correct 0 ms 212 KB Output is correct

Subtask #3
12.0 / 12.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 212 KB Output is correct
2 Correct 0 ms 212 KB Output is correct
3 Correct 0 ms 320 KB Output is correct
4 Correct 1 ms 212 KB Output is correct
5 Correct 1 ms 316 KB Output is correct
6 Correct 1 ms 212 KB Output is correct
7 Correct 0 ms 212 KB Output is correct
8 Correct 0 ms 212 KB Output is correct
9 Correct 1 ms 324 KB Output is correct
10 Correct 0 ms 324 KB Output is correct

Subtask #4
21.0 / 21.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 212 KB Output is correct
2 Correct 0 ms 212 KB Output is correct
3 Correct 0 ms 320 KB Output is correct
4 Correct 1 ms 212 KB Output is correct
5 Correct 1 ms 316 KB Output is correct
6 Correct 1 ms 212 KB Output is correct
7 Correct 0 ms 212 KB Output is correct
8 Correct 0 ms 212 KB Output is correct
9 Correct 1 ms 324 KB Output is correct
10 Correct 0 ms 324 KB Output is correct
11 Correct 1 ms 340 KB Output is correct
12 Correct 1 ms 332 KB Output is correct
13 Correct 1 ms 340 KB Output is correct

Subtask #5
26.0 / 26.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 212 KB Output is correct
2 Correct 0 ms 212 KB Output is correct
3 Correct 0 ms 320 KB Output is correct
4 Correct 1 ms 212 KB Output is correct
5 Correct 1 ms 316 KB Output is correct
6 Correct 1 ms 212 KB Output is correct
7 Correct 0 ms 212 KB Output is correct
8 Correct 0 ms 212 KB Output is correct
9 Correct 1 ms 324 KB Output is correct
10 Correct 0 ms 324 KB Output is correct
11 Correct 1 ms 340 KB Output is correct
12 Correct 1 ms 332 KB Output is correct
13 Correct 1 ms 340 KB Output is correct
14 Correct 54 ms 3868 KB Output is correct
15 Correct 37 ms 3652 KB Output is correct
16 Correct 36 ms 3392 KB Output is correct

Subtask #6
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 1289 ms 25928 KB Output is correct
2 Correct 1300 ms 25856 KB Output is correct
3 Correct 1262 ms 25156 KB Output is correct

Subtask #7
20.0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 1287 ms 39992 KB Output is correct
2 Correct 1280 ms 39976 KB Output is correct
3 Correct 1258 ms 38744 KB Output is correct
4 Correct 0 ms 212 KB Output is correct
5 Correct 0 ms 212 KB Output is correct
6 Correct 0 ms 320 KB Output is correct
7 Correct 1 ms 212 KB Output is correct
8 Correct 1 ms 316 KB Output is correct
9 Correct 1 ms 212 KB Output is correct
10 Correct 0 ms 212 KB Output is correct
11 Correct 0 ms 212 KB Output is correct
12 Correct 1 ms 324 KB Output is correct
13 Correct 0 ms 324 KB Output is correct
14 Correct 1 ms 340 KB Output is correct
15 Correct 1 ms 332 KB Output is correct
16 Correct 1 ms 340 KB Output is correct
17 Correct 54 ms 3868 KB Output is correct
18 Correct 37 ms 3652 KB Output is correct
19 Correct 36 ms 3392 KB Output is correct
20 Correct 1289 ms 25928 KB Output is correct
21 Correct 1300 ms 25856 KB Output is correct
22 Correct 1262 ms 25156 KB Output is correct
23 Correct 1735 ms 95472 KB Output is correct
24 Correct 1709 ms 69604 KB Output is correct
25 Correct 1561 ms 70392 KB Output is correct