oj.uz

Submission #313869

# Submission time Handle Problem Language Result Execution time Memory
313869 2020-10-17T07:45:19 Z BeanZ Temperature (POI11_tem) C++14
100 / 100
 271 ms 18808 KB 
// I_Love_LPL
#include <bits/stdc++.h>
using namespace std;
#define ll long long
#define endl '\n'
const int N = 2e6 + 5;
ll x[N], y[N];
int main(){
    ios_base::sync_with_stdio(false);
    cin.tie(0);
    if (fopen("A.inp", "r")){
        freopen("test.inp", "r", stdin);
        freopen("test.out", "w", stdout);
    }
    ll n;
    cin >> n;
    for (int i = 1; i <= n; i++){
        cin >> y[i] >> x[i];
    }
    deque<ll> dq;
    ll ans = 1, pos = 0;
    for (int i = 1; i <= n; i++){
        while (dq.size()){
            if (y[i] >= y[dq.back()]) dq.pop_back();
            else break;
        }
        dq.push_back(i);
        while (dq.size()){
            if (y[dq.front()] > x[i]){
                pos = dq.front();
                dq.pop_front();
            } else break;
        }
        ans = max(ans, i - pos);
    }
    cout << ans;
}
/*
*/

Compilation message

tem.cpp: In function 'int main()':
tem.cpp:12:16: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)', declared with attribute warn_unused_result [-Wunused-result]
   12 |         freopen("test.inp", "r", stdin);
      |         ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~
tem.cpp:13:16: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)', declared with attribute warn_unused_result [-Wunused-result]
   13 |         freopen("test.out", "w", stdout);
      |         ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~

Subtask #1
8.0 / 8.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 384 KB Output is correct
2 Correct 0 ms 384 KB Output is correct
3 Correct 1 ms 384 KB Output is correct

Subtask #2
8.0 / 8.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 384 KB Output is correct
2 Correct 1 ms 384 KB Output is correct
3 Correct 0 ms 384 KB Output is correct
4 Correct 0 ms 384 KB Output is correct

Subtask #3
8.0 / 8.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 512 KB Output is correct
2 Correct 3 ms 640 KB Output is correct
3 Correct 4 ms 640 KB Output is correct

Subtask #4
8.0 / 8.0

# Verdict Execution time Memory Grader output
1 Correct 75 ms 7992 KB Output is correct
2 Correct 87 ms 9080 KB Output is correct
3 Correct 94 ms 10104 KB Output is correct

Subtask #5
8.0 / 8.0

# Verdict Execution time Memory Grader output
1 Correct 160 ms 12152 KB Output is correct
2 Correct 172 ms 13180 KB Output is correct
3 Correct 175 ms 15096 KB Output is correct

Subtask #6
8.0 / 8.0

# Verdict Execution time Memory Grader output
1 Correct 221 ms 12792 KB Output is correct
2 Correct 173 ms 13560 KB Output is correct
3 Correct 209 ms 15352 KB Output is correct

Subtask #7
8.0 / 8.0

# Verdict Execution time Memory Grader output
1 Correct 225 ms 14332 KB Output is correct
2 Correct 187 ms 13816 KB Output is correct
3 Correct 259 ms 18808 KB Output is correct

Subtask #8
8.0 / 8.0

# Verdict Execution time Memory Grader output
1 Correct 205 ms 13848 KB Output is correct
2 Correct 165 ms 14328 KB Output is correct
3 Correct 177 ms 13816 KB Output is correct

Subtask #9
9.0 / 9.0

# Verdict Execution time Memory Grader output
1 Correct 131 ms 13600 KB Output is correct
2 Correct 131 ms 13816 KB Output is correct
3 Correct 136 ms 13692 KB Output is correct

Subtask #10
9.0 / 9.0

# Verdict Execution time Memory Grader output
1 Correct 125 ms 12888 KB Output is correct
2 Correct 134 ms 14120 KB Output is correct

Subtask #11
9.0 / 9.0

# Verdict Execution time Memory Grader output
1 Correct 185 ms 11964 KB Output is correct
2 Correct 271 ms 17976 KB Output is correct

Subtask #12
9.0 / 9.0

# Verdict Execution time Memory Grader output
1 Correct 179 ms 11640 KB Output is correct
2 Correct 231 ms 16248 KB Output is correct