Submission #110560

#	Time	Username	Problem	Language	Result	Execution time	Memory
110560		AngusRitossa	Bitaro, who Leaps through Time (JOI19_timeleap)	C++14	4 / 100	3021 ms	10836 KiB

timeleap

#include <bits/stdc++.h>
using namespace std;
#define int long long
int n, q;
int l[300010], r[300010];
#undef int
int main()
{
	#define int long long
	scanf("%lld%lld", &n, &q);
	for (int i = 1; i < n; i++)
	{
		scanf("%lld%lld", &l[i], &r[i]);
		r[i]--;
	}
	for (int f = 0; f < q; f++)
	{
		int t;
		scanf("%lld", &t);
		if (t == 1)
		{
			int p, s, e;
			scanf("%lld%lld%lld", &p, &s, &e);
			l[p] = s, r[p] = e;
			r[p]--;
		}
		else
		{
			int a, t1, b, t2;
			scanf("%lld%lld%lld%lld", &a, &t1, &b, &t2);
			if (a == b)
			{
				if (t1 <= t2) printf("0\n");
				else printf("%lld\n", t1-t2);
			}
			else if (a < b)
			{
				int ans = 0;
				for (int i = a; i < b; i++)
				{
					if (t1 < l[i]) t1 = l[i];
					if (t1 > r[i])
					{
						ans += t1-r[i];
						t1 = r[i];
					}
					t1++;
				}
				ans += max(0ll, t1-t2);
				printf("%lld\n", ans);
			}
			else
			{
				int ans = 0;
				for (int i = a-1; i >= b; i--)
				{
					if (t1 < l[i]) t1 = l[i];
					if (t1 > r[i])
					{
						ans += t1-r[i];
						t1 = r[i];
					}
					t1++;
				}
				ans += max(0ll, t1-t2);
				printf("%lld\n", ans);
			}
		}
	}
}

Compilation message (stderr)

timeleap.cpp: In function 'int main()':
timeleap.cpp:10:7: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
  scanf("%lld%lld", &n, &q);
  ~~~~~^~~~~~~~~~~~~~~~~~~~
timeleap.cpp:13:8: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
   scanf("%lld%lld", &l[i], &r[i]);
   ~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~
timeleap.cpp:19:8: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
   scanf("%lld", &t);
   ~~~~~^~~~~~~~~~~~
timeleap.cpp:23:9: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
    scanf("%lld%lld%lld", &p, &s, &e);
    ~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~
timeleap.cpp:30:9: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
    scanf("%lld%lld%lld%lld", &a, &t1, &b, &t2);
    ~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

• Subtask 1: 4 / 4
• Subtask 2: 0 / 30
• Subtask 3: 0 / 66