Submission #388956

#	TimeUTC-0	Username	Problem	Language	Result	Execution time	Memory
388956	2021-04-13 11:25:44	prvocislo	Boat (APIO16_boat)	C++17	31 / 100	1016 ms	524292 KiB

boat

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#include <iostream>
#include <vector>
#include <string>
#include <algorithm>
#include <queue>
#include <map>
#include <set>
#include <iomanip>
typedef long long ll;
using namespace std;
const ll mod = 1e9 + 7;
void upd(ll& a, const ll& b)
{
  a += b;
  if (a >= mod)a -= mod;
}
int main()
{
  ios::sync_with_stdio(false);
  cin.tie(0);
  int n;
  cin >> n;
  vector<int> a(n + 1), b(n + 1);
  for (int i = 1; i <= n; i++) cin >> a[i] >> b[i];
  vector<int> v;
  for (int i = 0; i <= n; i++) for (int j = a[i]; j <= b[i]; j++) v.push_back(j);
  sort(v.begin(), v.end());
  v.erase(unique(v.begin(), v.end()), v.end());
  vector<ll> dp(v.size(), 0);
 
 
הההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההה
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Compilation message (stderr)

boat.cpp: In function 'int main()':
boat.cpp:35:21: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   35 |   for (int j = 0; j < v.size(); j++)
      |                   ~~^~~~~~~~~~
boat.cpp:46:20: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   46 |  for (int j = 1; j < v.size(); j++) upd(ans, dp[j]);
      |                  ~~^~~~~~~~~~

• Subtask 1: 9 / 9
• Subtask 2: 22 / 22
• Subtask 3: 0 / 27
• Subtask 4: 0 / 42