제출 #120700

#	제출 시각UTC-0	아이디	문제	언어	결과	실행 시간	메모리
120700	2019-06-25 09:12:36	onjo0127	Cake 3 (JOI19_cake3)	C++11	100 / 100	1117 ms	156464 KiB

cake3

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#include <bits/stdc++.h>
using namespace std;
using pii = pair<int, int>;
 
struct Node {
  int c; long long s;
  int lc, rc;
};
 
const long long INF = 1LL * 1e18;
const Node emp = {0, 0, -1, -1};
 
struct PST {
  vector<int> root;
  vector<Node> T;
  void init(int idx, int s, int e) {
    T[idx] = emp;
    if(s == e) return;
    T[idx].lc = idx*2;
    T[idx].rc = idx*2+1;
    int m = s+e >> 1;
    init(idx*2, s, m);
    init(idx*2+1, m+1, e);
  }
  long long get(int pid, int nid, int s, int e, int k) {
    //printf("pseg get: pid: %d, nid: %d, s: %d, e: %d, k: %d\n", pid, nid, s, e, k);
    int cnt = T[nid].c - T[pid].c;
    if(cnt == k) return T[nid].s - T[pid].s;
    if(cnt < k) return -INF;
    int plc = T[pid].lc, nlc = T[nid].lc, prc = T[pid].rc, nrc = T[nid].rc, m = s+e >> 1;
 
 
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컴파일 시 표준 에러 (stderr) 메시지

cake3.cpp: In member function 'void PST::init(int, int, int)':
cake3.cpp:21:12: warning: suggest parentheses around '+' inside '>>' [-Wparentheses]
   int m = s+e >> 1;
           ~^~
cake3.cpp: In member function 'long long int PST::get(int, int, int, int, int)':
cake3.cpp:30:80: warning: suggest parentheses around '+' inside '>>' [-Wparentheses]
   int plc = T[pid].lc, nlc = T[nid].lc, prc = T[pid].rc, nrc = T[nid].rc, m = s+e >> 1;
                                                                               ~^~
cake3.cpp: In member function 'void PST::upd(int, int, int, int, int, int)':
cake3.cpp:45:12: warning: suggest parentheses around '+' inside '>>' [-Wparentheses]
   int m = s+e >> 1;
           ~^~
cake3.cpp: In function 'void dnc(int, int, int, int)':
cake3.cpp:82:11: warning: suggest parentheses around '+' inside '>>' [-Wparentheses]
  int m = s+e >> 1;
          ~^~
cake3.cpp: In function 'int main()':
cake3.cpp:98:7: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
  scanf("%d%d",&N,&M);
  ~~~~~^~~~~~~~~~~~~~
cake3.cpp:100:8: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
   scanf("%d%d",&V[i],&C[i]);
   ~~~~~^~~~~~~~~~~~~~~~~~~~

• Subtask 1: 5 / 5
• Subtask 2: 19 / 19
• Subtask 3: 76 / 76