Submission #749431

#	TimeUTC-0	Username	Problem	Language	Result	Execution time	Memory
749431	2023-05-28 03:14:33	He_Huanglu	Triple Jump (JOI19_jumps)	C++17	100 / 100	1030 ms	72024 KiB

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#include <bits/stdc++.h>
#define ii pair<int, int>
#define fi first
#define se second
using namespace std;
const int N = 5e5 + 5;
int n, nq, a[N], t[4 * N], lazy[4 * N], mx[4 * N], f[4 * N], ans[N];
vector <int> opt[N];
vector <pair<int, ii> > q;
stack <int> st;
void build(int i, int l, int r) {
    if(l == r) {
        mx[i] = a[l];
        return ;
    }
    int mid = l + r >> 1;
    build(i << 1, l, mid);
    build(i << 1 | 1, mid + 1, r);
    mx[i] = max(mx[i << 1], mx[i << 1 | 1]);
}
void down(int i) {
    if(!down[i]) return ;
    t[i << 1] = max(t[i << 1], lazy[i]);
    f[i << 1] = max(f[i << 1], t[i << 1] + mx[i << 1]);
    lazy[i << 1] = max(lazy[i << 1], lazy[i]);
    t[i << 1 | 1] = max(t[i << 1 | 1], lazy[i]);
    f[i << 1 | 1] = max(f[i << 1 | 1], t[i << 1 | 1] + mx[i << 1 | 1]);
 
 
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Compilation message (stderr)

jumps.cpp: In function 'void build(int, int, int)':
jumps.cpp:18:17: warning: suggest parentheses around '+' inside '>>' [-Wparentheses]
   18 |     int mid = l + r >> 1;
      |               ~~^~~
jumps.cpp: In function 'void down(int)':
jumps.cpp:25:15: warning: pointer to a function used in arithmetic [-Wpointer-arith]
   25 |     if(!down[i]) return ;
      |               ^
jumps.cpp: In function 'void upd(int, int, int, int, int, int)':
jumps.cpp:44:17: warning: suggest parentheses around '+' inside '>>' [-Wparentheses]
   44 |     int mid = l + r >> 1;
      |               ~~^~~
jumps.cpp: In function 'int get(int, int, int, int, int)':
jumps.cpp:54:17: warning: suggest parentheses around '+' inside '>>' [-Wparentheses]
   54 |     int mid = l + r >> 1;
      |               ~~^~~
jumps.cpp: At global scope:
jumps.cpp:58:1: warning: ISO C++ forbids declaration of 'main' with no type [-Wreturn-type]
   58 | main () {
      | ^~~~
jumps.cpp: In function 'int main()':
jumps.cpp:61:16: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)' declared with attribute 'warn_unused_result' [-Wunused-result]
   61 |         freopen("task.inp", "r", stdin);
      |         ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~
jumps.cpp:62:16: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)' declared with attribute 'warn_unused_result' [-Wunused-result]
   62 |         freopen("wa.out", "w", stdout);
      |         ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~

• Subtask 1: 5 / 5
• Subtask 2: 14 / 14
• Subtask 3: 27 / 27
• Subtask 4: 54 / 54