Submission #464210

#	TimeUTC-0	Username	Problem	Language	Result	Execution time	Memory
464210	2021-08-12 13:57:00	idas	Railway (BOI17_railway)	C++11	100 / 100	269 ms	54540 KiB

railway

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#include <bits/stdc++.h>
#define FOR(i, begin, end) for(int i = (begin); i < (end); i++)
#define FAST_IO ios_base::sync_with_stdio(false); cin.tie(nullptr)
#define F first
#define S second
#define PB push_back
#define MP make_pair
using namespace std;
typedef pair<int, int> pii;
typedef vector<int> vi;
typedef long long ll;
const int INF=1e9;
void setIO()
{
    FAST_IO;
}
void setIO(string s)
{
    FAST_IO;
    freopen((s+".in").c_str(), "r", stdin);
    freopen((s+".out").c_str(), "w", stdout);
}
const int N=1e5+10, M=5e4+10, L=27;
int n, m, k, cnt[N], par[N][L], dp[N];
 
 
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Compilation message (stderr)

railway.cpp: In function 'int main()':
railway.cpp:2:51: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<std::pair<int, int> >::size_type' {aka 'long unsigned int'} [-Wsign-compare]
    2 | #define FOR(i, begin, end) for(int i = (begin); i < (end); i++)
      |                                                   ^
railway.cpp:134:9: note: in expansion of macro 'FOR'
  134 |         FOR(j, 0, inf[i].size())
      |         ^~~
railway.cpp: In function 'void setIO(std::string)':
railway.cpp:24:12: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)' declared with attribute 'warn_unused_result' [-Wunused-result]
   24 |     freopen((s+".in").c_str(), "r", stdin);
      |     ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
railway.cpp:25:12: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)' declared with attribute 'warn_unused_result' [-Wunused-result]
   25 |     freopen((s+".out").c_str(), "w", stdout);
      |     ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

• Subtask 1: 8 / 8
• Subtask 2: 15 / 15
• Subtask 3: 7 / 7
• Subtask 4: 29 / 29
• Subtask 5: 16 / 16
• Subtask 6: 25 / 25