Submission #832321

#	Time	Username	Problem	Language	Result	Execution time	Memory
832321		radaiosm7	Inside information (BOI21_servers)	C++98	2.50 / 100	188 ms	524288 KiB

servers

#include <bits/stdc++.h>
using namespace std;
#define X first
#define Y second
int n, k, i, a, b;
char quer;
bitset<120005> bts[120005];

int main() {
  scanf("%d%d", &n, &k);
  for (i=1; i <= n; ++i) bts[i].set(i);

  for (i=1; i <= n+k-1; ++i) {
    scanf("\n%c", &quer);

    if (quer == 'S') {
      scanf("%d%d", &a, &b);
      bts[a] = bts[a]|bts[b];
      bts[b] = bts[a];
    }

    else if (quer == 'Q') {
      scanf("%d%d", &a, &b);
      if (bts[a][b]) printf("yes\n");
      else printf("no\n");
    }

    else {
      scanf("%d", &a);
      printf("0\n");
    }
  }
}

Compilation message (stderr)

servers.cpp: In function 'int main()':
servers.cpp:10:8: warning: ignoring return value of 'int scanf(const char*, ...)' declared with attribute 'warn_unused_result' [-Wunused-result]
   10 |   scanf("%d%d", &n, &k);
      |   ~~~~~^~~~~~~~~~~~~~~~
servers.cpp:14:10: warning: ignoring return value of 'int scanf(const char*, ...)' declared with attribute 'warn_unused_result' [-Wunused-result]
   14 |     scanf("\n%c", &quer);
      |     ~~~~~^~~~~~~~~~~~~~~
servers.cpp:17:12: warning: ignoring return value of 'int scanf(const char*, ...)' declared with attribute 'warn_unused_result' [-Wunused-result]
   17 |       scanf("%d%d", &a, &b);
      |       ~~~~~^~~~~~~~~~~~~~~~
servers.cpp:23:12: warning: ignoring return value of 'int scanf(const char*, ...)' declared with attribute 'warn_unused_result' [-Wunused-result]
   23 |       scanf("%d%d", &a, &b);
      |       ~~~~~^~~~~~~~~~~~~~~~
servers.cpp:29:12: warning: ignoring return value of 'int scanf(const char*, ...)' declared with attribute 'warn_unused_result' [-Wunused-result]
   29 |       scanf("%d", &a);
      |       ~~~~~^~~~~~~~~~

• Subtask 1: 2.5 / 2.5
• Subtask 2: 0 / 2.5
• Subtask 3: 0 / 2.5
• Subtask 4: 0 / 2.5
• Subtask 5: 0 / 5
• Subtask 6: 0 / 5
• Subtask 7: 0 / 10
• Subtask 8: 0 / 10
• Subtask 9: 0 / 12.5
• Subtask 10: 0 / 12.5
• Subtask 11: 0 / 17.5
• Subtask 12: 0 / 17.5