Submission #143793

#	TimeUTC-0	Username	Problem	Language	Result	Execution time	Memory
143793	2019-08-15 06:53:09	ainta	Arranging Shoes (IOI19_shoes)	C++17	100 / 100	101 ms	14572 KiB

shoes

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#include "shoes.h"
#include <cstdio>
#include <algorithm>
#include <vector>
using namespace std;
#define pii pair<int,int>
vector<int>A[101000], B[101000];
int n, BIT[201000];
void Add(int a, int b) {
  while (a <= 2 * n) {
    BIT[a] += b;
    a += (a&-a);
  }
}
int Sum(int a){
  int r = 0;
  while (a) {
    r += BIT[a];
    a -= (a&-a);
  }
  return r;
}
vector<pii>V;
long long count_swaps(std::vector<int> s) {
 
 
הההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההה
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Compilation message (stderr)

shoes.cpp: In function 'long long int count_swaps(std::vector<int>)':
shoes.cpp:39:17: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
   for (j = 0; j < A[i].size(); j++) {
               ~~^~~~~~~~~~~~~

• Subtask 1: 10 / 10
• Subtask 2: 20 / 20
• Subtask 3: 20 / 20
• Subtask 4: 15 / 15
• Subtask 5: 20 / 20
• Subtask 6: 15 / 15