Submission #1118074

#	TimeUTC-0	Username	Problem	Language	Result	Execution time	Memory
1118074	2024-11-24 21:52:45	cpdreamer	Watching (JOI13_watching)	C++17	50 / 100	1002 ms	6376 KiB

watching

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#include <bits/stdc++.h>
using namespace std;
typedef long long ll;
#define P pair
#define S second
#define F first
#define all(v) v.begin(),v.end()
#define V vector
#define pb push_back
const ll MOD=998244353;
void file() {
    freopen("input.txt.txt", "r", stdin);
    freopen("output.txt.txt", "w", stdout);
}
void setIO(string s = "") {
    if (!s.empty()){
        freopen((s + ".in").c_str(), "r", stdin);
        freopen((s + ".out").c_str(), "w", stdout);
    }
    ios::sync_with_stdio(false);
    cin.tie(0);
}
long long intersection(const std::pair<long long, long long>& interval1,
                       const std::pair<long long, long long>& interval2) {
    long long start = std::max(interval1.first, interval2.first);
    long long end = std::min(interval1.second, interval2.second);
    if (start <= end) {
        return end - start + 1;
    }
    return 0;
 
 
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Compilation message (stderr)

watching.cpp: In function 'void file()':
watching.cpp:12:12: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)' declared with attribute 'warn_unused_result' [-Wunused-result]
   12 |     freopen("input.txt.txt", "r", stdin);
      |     ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
watching.cpp:13:12: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)' declared with attribute 'warn_unused_result' [-Wunused-result]
   13 |     freopen("output.txt.txt", "w", stdout);
      |     ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
watching.cpp: In function 'void setIO(std::string)':
watching.cpp:17:16: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)' declared with attribute 'warn_unused_result' [-Wunused-result]
   17 |         freopen((s + ".in").c_str(), "r", stdin);
      |         ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
watching.cpp:18:16: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)' declared with attribute 'warn_unused_result' [-Wunused-result]
   18 |         freopen((s + ".out").c_str(), "w", stdout);
      |         ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

• Subtask 1: 50 / 50
• Subtask 2: 0 / 50