Submission #473975

#	TimeUTC-0	Username	Problem	Language	Result	Execution time	Memory
473975	2021-09-16 13:43:34	model_code	Wells (CEOI21_wells)	C++17	60 / 100	3304 ms	256420 KiB

wells

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#include <cstdio>
#include <cassert>
#include <algorithm>
#include <vector>
#include <cstring>
#include <iostream>
#include <cmath>
#include <string>
 
#define FOR(i, a, b) for (int i=(a); i<(b); i++)
#define REP(i, n) FOR(i, 0, n)
#define TRACE(x) cerr << #x << " = " << x << endl
#define _ << " _ " <<
#define X first
#define Y second
 
using namespace std;
 
typedef pair<int, int> P;
typedef long long ll;
 
const int MAX = 3000050, MOD = 1e9 + 7;
 
int add(int a, int b) {
  a += b;
  if (a >= MOD) a -= MOD;
  return a;
}
 
int sub(int a, int b) {
 
 
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Compilation message (stderr)

wells.cpp: In function 'void load()':
wells.cpp:53:8: warning: ignoring return value of 'int scanf(const char*, ...)' declared with attribute 'warn_unused_result' [-Wunused-result]
   53 |   scanf("%d%d", &n, &k);
      |   ~~~~~^~~~~~~~~~~~~~~~
wells.cpp:56:10: warning: ignoring return value of 'int scanf(const char*, ...)' declared with attribute 'warn_unused_result' [-Wunused-result]
   56 |     scanf("%d%d", &a, &b); a--; b--;
      |     ~~~~~^~~~~~~~~~~~~~~~

• Subtask 1: 18 / 30
• Subtask 2: 12 / 20
• Subtask 3: 12 / 20
• Subtask 4: 18 / 30