Submission #153705

#	TimeUTC-0	Username	Problem	Language	Result	Execution time	Memory
153705	2019-09-15 09:16:27	kimcoding	Sajam (COCI18_sajam)	C++17	90 / 90	71 ms	2424 KiB

sajam

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#include <cstdio>
#include <algorithm>
using namespace std;
bool chk[2][1005], map[1005][1005];
int cnt[2][1005], n, k, sum;
bool solve(int t) {
  if (sum <= k) return true;
  for (t = 1; t <= n * 2; t++) {
    int Max = -1, a, b;
    for (int i = 1; i <= n; i++) {
      for (int j = 0; j <= 1; j++) {
        if (chk[j][i]) continue;
        if (Max < cnt[j][i])
          Max = cnt[j][i], a = j, b = i;
      }
    }
    chk[a][b] = true;
    sum += n - 2 * cnt[a][b];
    cnt[a][b] = n - cnt[a][b];
    for (int i = 1; i <= n; i++)
      cnt[!a][i] += ((map[a ? b : i][a ? i : b] ^= 1) ? 1 : -1);
    if (sum <= k) return true;
  }
  return false;
}
int main() {
  scanf("%d %d", &n, &k);
 
 
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Compilation message (stderr)

sajam.cpp: In function 'int main()':
sajam.cpp:30:7: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
  scanf("%d %d", &n, &k);
  ~~~~~^~~~~~~~~~~~~~~~~
sajam.cpp:34:9: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
    scanf(" %c", &x);
    ~~~~~^~~~~~~~~~~
sajam.cpp: In function 'bool solve(int)':
sajam.cpp:20:26: warning: 'b' may be used uninitialized in this function [-Wmaybe-uninitialized]
   sum += n - 2 * cnt[a][b];
                  ~~~~~~~~^
sajam.cpp:20:26: warning: 'a' may be used uninitialized in this function [-Wmaybe-uninitialized]

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