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  1. #include <bits/stdc++.h>
  2. #include <cctype>
  3. #include <cstdlib>
  4. #include <iostream>
  5. #include <pthread.h>
  6. #include <vector>
  7.  
  8. void one_piece() {
  9.   std::cin.tie(0);
  10.   std::cin.sync_with_stdio(0);
  11.   std::cout.tie(0);
  12.   std::cout.sync_with_stdio(0);
  13. }
  14.  
  15.  
  16. int main() {
  17.     one_piece();
  18.  
  19.     int n, m, r, c;
  20.     std::cin >> n >> m >> r >> c;
  21.  
  22.     int sum = 0;
  23.     int empty = ((r-1)*m) + c;
  24.  
  25.     for(int i = 1; i <= n; i++) {
  26.         for(int j = 1; j <= m; j++) {
  27.             int id = ((i-1)*m) + j;
  28.             if(id > empty) {
  29.                 if(id%m == 1) {
  30.                     int newr = i - 1;
  31.                     long long distance = std::abs(i - newr) + std::abs(j - m);
  32.                     sum += distance;
  33.                 } else {
  34.                     int newc = j - 1;
  35.                     long long distance = std::abs(i - i) + std::abs(j - newc);
  36.                     sum += distance;
  37.                 }
  38.                 empty = id;
  39.             }
  40.         }
  41.     }
  42.  
  43.     std::cout << sum;
  44.  
  45.  
  46.     return 0;
  47. }
Success #stdin #stdout 0s 5284KB
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https://ideone.com/vQW95K
language:
C++ (gcc 8.3)
created:
12 hours ago
visibility:
public

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