Submission #610973

#	Time	Username	Problem	Language	Result	Execution time	Memory
610973		Plurm	Remittance (JOI19_remittance)	C++11	0 / 100	1 ms	340 KiB

remittance

#include <bits/stdc++.h>
using namespace std;

int a[1000005];
int b[1000005];
int main() {
  int n;
  scanf("%d", &n);
  bool idenzero = true;
  for (int i = 1; i <= n; i++) {
    scanf("%d%d", a + i, b + i);
    if (b[i])
      idenzero = false;
  }
  for (int it = 0; it < 100; it++) {
    for (int i = 1; i <= n; i++) {
      if (a[i] > b[i]) {
        int transfer = (a[i] - b[i] + 1) / 2;
        a[i] -= 2 * transfer;
        a[i % n + 1] += transfer;
      }
    }
  }
  bool ok = true;
  for (int i = 1; i <= n; i++) {
    if (a[i] != b[i])
      ok = false;
  }
  printf(ok ? "Yes\n" : "No\n");
  return 0;
}

Compilation message (stderr)

remittance.cpp: In function 'int main()':
remittance.cpp:9:8: warning: variable 'idenzero' set but not used [-Wunused-but-set-variable]
    9 |   bool idenzero = true;
      |        ^~~~~~~~
remittance.cpp:8:8: warning: ignoring return value of 'int scanf(const char*, ...)' declared with attribute 'warn_unused_result' [-Wunused-result]
    8 |   scanf("%d", &n);
      |   ~~~~~^~~~~~~~~~
remittance.cpp:11:10: warning: ignoring return value of 'int scanf(const char*, ...)' declared with attribute 'warn_unused_result' [-Wunused-result]
   11 |     scanf("%d%d", a + i, b + i);
      |     ~~~~~^~~~~~~~~~~~~~~~~~~~~~

• Subtask 1: 0 / 15
• Subtask 2: 0 / 40
• Subtask 3: 0 / 45