Submission #238138

#	TimeUTC-0	Username	Problem	Language	Result	Execution time	Memory
238138	2020-06-10 02:11:51	HellAngel	Jakarta Skyscrapers (APIO15_skyscraper)	C++14	100 / 100	190 ms	69600 KiB

skyscraper

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#include <bits/stdc++.h>
using namespace std;
const int maxn = 50007;
int n, m, a[maxn], start[maxn], len[maxn], dist[maxn];
set<int> st[maxn];
vector<pair<int, int>> vt[maxn];
priority_queue<pair<int, int>, vector<pair<int, int>>, greater<pair<int, int>>> pq;
bool Inside(int x)
{
    return (x >= 0 && x < n);
}
int32_t main()
{
    ios_base::sync_with_stdio(0);
    cin.tie(0);
    if(fopen("test.inp", "r")) freopen("test.inp", "r", stdin), freopen("test.out", "w", stdout);
    cin >> n >> m;
    if(m == 1)
    {
        cout << -1;
        return 0;
    }
    fill_n(dist, n, 1e9);
    for(int i = 1; i <= m; i++)
    {
        cin >> start[i] >> len[i];
 
 
הההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההה
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Compilation message (stderr)

skyscraper.cpp: In function 'int32_t main()':
skyscraper.cpp:20:63: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)', declared with attribute warn_unused_result [-Wunused-result]
     if(fopen("test.inp", "r")) freopen("test.inp", "r", stdin), freopen("test.out", "w", stdout);
                                ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
skyscraper.cpp:20:63: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)', declared with attribute warn_unused_result [-Wunused-result]

• Subtask 1: 10 / 10
• Subtask 2: 12 / 12
• Subtask 3: 14 / 14
• Subtask 4: 21 / 21
• Subtask 5: 43 / 43