Submission #743841

#	TimeUTC-0	Username	Problem	Language	Result	Execution time	Memory
743841	2023-05-18 04:49:11	nguyentunglam	Two Antennas (JOI19_antennas)	C++17	13 / 100	318 ms	24024 KiB

antennas

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#include<bits/stdc++.h>
#define fi first
#define se second
#define endl "\n"
#define ii pair<int, int>
using namespace std;
const int N = 2e5 + 10;
int h[N], a[N], b[N], T[N], mx[N], mn[N], ans[N];
vector<ii> query[N], event[N];
int n;
void push(int s, int l, int r) {
    T[s] = max(T[s], mx[s] - mn[s]);
    if (l != r) {
        mx[s << 1] = max(mx[s << 1], mx[s]);
        mx[s << 1 | 1] = max(mx[s << 1 | 1], mx[s]);
    }
    mx[s] = 0;
}
void upval (int s, int l, int r, int pos, int val) {
    push(s, l, r);
    if (l == r) {
        mn[s] = val;
        return;
    }
    int mid = l + r >> 1;
    if (pos <= mid) upval(s << 1, l, mid, pos, val);
    else upval(s << 1 | 1, mid + 1, r, pos, val);
    mn[s] = min(mn[s << 1], mn[s << 1 | 1]);
}
void upans (int s, int l, int r, int from, int to, int val) {
 
 
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Compilation message (stderr)

antennas.cpp: In function 'void upval(int, int, int, int, int)':
antennas.cpp:25:17: warning: suggest parentheses around '+' inside '>>' [-Wparentheses]
   25 |     int mid = l + r >> 1;
      |               ~~^~~
antennas.cpp: In function 'void upans(int, int, int, int, int, int)':
antennas.cpp:38:17: warning: suggest parentheses around '+' inside '>>' [-Wparentheses]
   38 |     int mid = l + r >> 1;
      |               ~~^~~
antennas.cpp: In function 'int get(int, int, int, int, int)':
antennas.cpp:47:17: warning: suggest parentheses around '+' inside '>>' [-Wparentheses]
   47 |     int mid = l + r >> 1;
      |               ~~^~~
antennas.cpp: In function 'int main()':
antennas.cpp:68:17: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)' declared with attribute 'warn_unused_result' [-Wunused-result]
   68 |         freopen ("task.inp", "r", stdin);
      |         ~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~
antennas.cpp:69:17: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)' declared with attribute 'warn_unused_result' [-Wunused-result]
   69 |         freopen ("task.out", "w", stdout);
      |         ~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~
antennas.cpp:72:17: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)' declared with attribute 'warn_unused_result' [-Wunused-result]
   72 |         freopen (task".inp", "r", stdin);
      |         ~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~
antennas.cpp:73:17: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)' declared with attribute 'warn_unused_result' [-Wunused-result]
   73 |         freopen (task".out", "w", stdout);
      |         ~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~

• Subtask 1: 2 / 2
• Subtask 2: 11 / 11
• Subtask 3: 0 / 22
• Subtask 4: 0 / 65