Submission #30577

#	TimeUTC-0	Username	Problem	Language	Result	Execution time	Memory
30577	2017-07-25 04:38:21	azneye	Synchronization (JOI13_synchronization)	C++14	100 / 100	356 ms	18236 KiB

synchronization

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#include <bits/stdc++.h>
using namespace std;
namespace {
#define VERA(i, a, b)for(auto i=(ll)(a);i<(ll)(b);++i)
#define ANDY(i, a, b)for(auto i=(ll)(a);i>(ll)(b);--i)
typedef long long ll;
typedef long double dd;
template <class T> using V = vector<T>;
// Maintain array A[0, n-1] initially all -1
// Given k, x: Set A[k] = x
// Given b, x: Find max p such that 0 <= p <= b and A[p] >= x
struct SegTree {
  static const int PW = 1 << 17;
  int max_val[2 * PW];
  void Init() {
    memset(max_val, -1, sizeof(max_val));
  }
  void Set(int pos, int val) {
    max_val[pos += PW] = val;
    for (int i = pos >> 1; i > 0; i >>= 1)
      max_val[i] = max(max_val[2 * i], max_val[2 * i + 1]);
  }
 
 
הההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההה
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Compilation message (stderr)

synchronization.cpp: In function 'void {anonymous}::Solve({anonymous}::ll)':
synchronization.cpp:68:32: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
   scanf("%d %d %d", &n, &m, &q);
                                ^
synchronization.cpp:70:37: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
     scanf("%d %d", e_x + i, e_y + i);
                                     ^
synchronization.cpp:99:20: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
     scanf("%d", &e);
                    ^
synchronization.cpp:120:20: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
     scanf("%d", &x);
                    ^

• Subtask 1: 10 / 10
• Subtask 2: 20 / 20
• Subtask 3: 10 / 10
• Subtask 4: 20 / 20
• Subtask 5: 40 / 40