Submission #526184

#	TimeUTC-0	Username	Problem	Language	Result	Execution time	Memory
526184	2022-02-13 22:13:33	Plurm	Diversity (CEOI21_diversity)	C++11	Compilation error	0 ms	0 KiB

diversity

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#include <bits/stdc++.h>
using namespace std;
template <typename T>
class FenwickTree{
public:
  T* FT;
  int n;
  bool negmode;
  FenwickTree(int sz = 300000, bool negindex = true){
    n = sz+505;
    FT = new T[n];
    fill(FT, FT+n, (T)0);
    negmode = negindex;
  }
  inline void add(int idx, T amt){
    if(negmode) idx += n/2;
    while(idx < n){
      FT[idx] += amt;
      idx += idx & -idx;
    }
  }
  inline T sum(int idx){
    if(negmode) idx += n/2;
    T ret = (T)0;
    while(idx > 0){
      ret += FT[idx];
      idx -= idx & -idx;
    }
    return ret;
 
 
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Compilation message (stderr)

diversity.cpp: In function 'int main()':
diversity.cpp:115:9: error: 'l' was not declared in this scope
  115 |     tie(l, r) = rawq[i];
      |         ^
diversity.cpp:115:12: error: 'r' was not declared in this scope
  115 |     tie(l, r) = rawq[i];
      |            ^
diversity.cpp:99:7: warning: ignoring return value of 'int scanf(const char*, ...)' declared with attribute 'warn_unused_result' [-Wunused-result]
   99 |  scanf("%d%d",&n,&q);
      |  ~~~~~^~~~~~~~~~~~~~
diversity.cpp:101:8: warning: ignoring return value of 'int scanf(const char*, ...)' declared with attribute 'warn_unused_result' [-Wunused-result]
  101 |   scanf("%d",a+i);
      |   ~~~~~^~~~~~~~~~
diversity.cpp:107:10: warning: ignoring return value of 'int scanf(const char*, ...)' declared with attribute 'warn_unused_result' [-Wunused-result]
  107 |     scanf("%d%d",&l,&r);
      |     ~~~~~^~~~~~~~~~~~~~