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Submission #361717

# Submission time Handle Problem Language Result Execution time Memory
361717 2021-01-31T11:18:05 Z wildturtle Lightning Rod (NOI18_lightningrod) C++14
80 / 100
 2000 ms 79764 KB 
#include<bits/stdc++.h>
using namespace std;
int a,b,c,d,n;
bool l;
stack < pair <int , int > > st;
int main() {
    ios_base::sync_with_stdio(0); cin.tie(0); cout.tie(0);
    cin>>n;
    for(int i=1;i<=n;i++) {
        cin>>a>>b;
        l=0;
        while(!st.empty()) {
            c=st.top().first;
            d=st.top().second;
            if(a+b<=c+d) { l=1; break; }
            if(a-b<=c-d) st.pop();
            else break;
        }
        if(l==0) st.push({a,b});
    }
    cout<<st.size();
}

Subtask #1
4.0 / 4.0

# Verdict Execution time Memory Grader output
1 Correct 1727 ms 79764 KB Output is correct
2 Correct 1725 ms 79728 KB Output is correct
3 Correct 1726 ms 77496 KB Output is correct

Subtask #2
7.0 / 7.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 364 KB Output is correct
2 Correct 1 ms 364 KB Output is correct
3 Correct 1 ms 364 KB Output is correct
4 Correct 0 ms 364 KB Output is correct
5 Correct 0 ms 364 KB Output is correct
6 Correct 0 ms 364 KB Output is correct
7 Correct 1 ms 364 KB Output is correct

Subtask #3
12.0 / 12.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 364 KB Output is correct
2 Correct 1 ms 364 KB Output is correct
3 Correct 1 ms 364 KB Output is correct
4 Correct 0 ms 364 KB Output is correct
5 Correct 0 ms 364 KB Output is correct
6 Correct 0 ms 364 KB Output is correct
7 Correct 1 ms 364 KB Output is correct
8 Correct 1 ms 364 KB Output is correct
9 Correct 1 ms 364 KB Output is correct
10 Correct 0 ms 364 KB Output is correct

Subtask #4
21.0 / 21.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 364 KB Output is correct
2 Correct 1 ms 364 KB Output is correct
3 Correct 1 ms 364 KB Output is correct
4 Correct 0 ms 364 KB Output is correct
5 Correct 0 ms 364 KB Output is correct
6 Correct 0 ms 364 KB Output is correct
7 Correct 1 ms 364 KB Output is correct
8 Correct 1 ms 364 KB Output is correct
9 Correct 1 ms 364 KB Output is correct
10 Correct 0 ms 364 KB Output is correct
11 Correct 1 ms 364 KB Output is correct
12 Correct 1 ms 364 KB Output is correct
13 Correct 1 ms 364 KB Output is correct

Subtask #5
26.0 / 26.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 364 KB Output is correct
2 Correct 1 ms 364 KB Output is correct
3 Correct 1 ms 364 KB Output is correct
4 Correct 0 ms 364 KB Output is correct
5 Correct 0 ms 364 KB Output is correct
6 Correct 0 ms 364 KB Output is correct
7 Correct 1 ms 364 KB Output is correct
8 Correct 1 ms 364 KB Output is correct
9 Correct 1 ms 364 KB Output is correct
10 Correct 0 ms 364 KB Output is correct
11 Correct 1 ms 364 KB Output is correct
12 Correct 1 ms 364 KB Output is correct
13 Correct 1 ms 364 KB Output is correct
14 Correct 44 ms 492 KB Output is correct
15 Correct 52 ms 512 KB Output is correct
16 Correct 41 ms 1132 KB Output is correct

Subtask #6
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 1771 ms 51328 KB Output is correct
2 Correct 1791 ms 51416 KB Output is correct
3 Correct 1716 ms 50056 KB Output is correct

Subtask #7
0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 1727 ms 79764 KB Output is correct
2 Correct 1725 ms 79728 KB Output is correct
3 Correct 1726 ms 77496 KB Output is correct
4 Correct 1 ms 364 KB Output is correct
5 Correct 1 ms 364 KB Output is correct
6 Correct 1 ms 364 KB Output is correct
7 Correct 0 ms 364 KB Output is correct
8 Correct 0 ms 364 KB Output is correct
9 Correct 0 ms 364 KB Output is correct
10 Correct 1 ms 364 KB Output is correct
11 Correct 1 ms 364 KB Output is correct
12 Correct 1 ms 364 KB Output is correct
13 Correct 0 ms 364 KB Output is correct
14 Correct 1 ms 364 KB Output is correct
15 Correct 1 ms 364 KB Output is correct
16 Correct 1 ms 364 KB Output is correct
17 Correct 44 ms 492 KB Output is correct
18 Correct 52 ms 512 KB Output is correct
19 Correct 41 ms 1132 KB Output is correct
20 Correct 1771 ms 51328 KB Output is correct
21 Correct 1791 ms 51416 KB Output is correct
22 Correct 1716 ms 50056 KB Output is correct
23 Execution timed out 2075 ms 652 KB Time limit exceeded
24 Halted 0 ms 0 KB -