Submission #124178

#	Time	Username	Problem	Language	Result	Execution time	Memory
124178		AyaBenSaad	Boat (APIO16_boat)	C++14	0 / 100	4 ms	1400 KiB

boat

#include <bits/stdc++.h>
 
using namespace std;
 
const int M = 5e2 + 2;
int n, t[M], dp[M][M];
 
int solve (int id = 1, int per = 0) {
    if (id == 1+n) return 1;
    if (dp[id][per] != -1) return dp[id][per];
    int x = (t[id] >= t[per] ? solve (id + 1, id) : 0);
    dp[id][per] = solve (id + 1, per) + x;
    return dp[id][per];
}
 
int main () {
  scanf ("%d", &n);
  int a;
  for (int i = 1; i <= n; i++) scanf ("%d %d", &t[i], &a);
  t[0] = -2e9;
  memset (dp, -1, sizeof dp);
  printf ("%d\n", solve()-1);
} 

Compilation message (stderr)

boat.cpp: In function 'int main()':
boat.cpp:17:9: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
   scanf ("%d", &n);
   ~~~~~~^~~~~~~~~~
boat.cpp:19:38: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
   for (int i = 1; i <= n; i++) scanf ("%d %d", &t[i], &a);
                                ~~~~~~^~~~~~~~~~~~~~~~~~~~

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