Submission #420381

#	Time	Username	Problem	Language	Result	Execution time	Memory
420381		Nicholas_Patrick	Autobahn (COI21_autobahn)	C++17	20 / 100	1 ms	304 KiB

autobahn

#include <cstdio>
#include <queue>
using namespace std;

struct person{
	int l, r, t;
};
int main(){
	int n, k, x;
	scanf("%d%d%d", &n, &k, &x);
	vector<person> people(n);
	vector<int> count(100, 0);
	vector<int> pay(100, 0);
	for(auto& i : people){
		scanf("%d%d%d", &i.l, &i.t, &i.r), i.l--;
		for(int j=i.l; j<i.r; j++)
			count[j]++;
		for(int j=i.l+i.t; j<i.r; j++)
			pay[j]++;
	}
	int ans=0;
	for(int i=0; i+x<=100; i++){
		int curr=0;
		for(int j=i; j<i+x; j++){
			if(count[j]>=k)
				curr+=pay[j];
		}
		ans=max(ans, curr);
	}
	printf("%d\n", ans);
}

Compilation message (stderr)

autobahn.cpp: In function 'int main()':
autobahn.cpp:10:7: warning: ignoring return value of 'int scanf(const char*, ...)' declared with attribute 'warn_unused_result' [-Wunused-result]
   10 |  scanf("%d%d%d", &n, &k, &x);
      |  ~~~~~^~~~~~~~~~~~~~~~~~~~~~
autobahn.cpp:15:8: warning: ignoring return value of 'int scanf(const char*, ...)' declared with attribute 'warn_unused_result' [-Wunused-result]
   15 |   scanf("%d%d%d", &i.l, &i.t, &i.r), i.l--;
      |   ~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~

• Subtask 1: 20 / 20
• Subtask 2: 0 / 30
• Subtask 3: 0 / 50