Submission #970709

#	TimeUTC-0	Username	Problem	Language	Result	Execution time	Memory
970709	2024-04-27 06:40:59	VinhLuu	Boat (APIO16_boat)	C++17	100 / 100	491 ms	8792 KiB

boat

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//#pragma GCC optimize("O3,unroll-loops")
//#pragma GCC target("avx2,bmi,bmi2,lzcnt,popcnt")
#include <bits/stdc++.h>
#define ll long long
#define fi first
#define se second
#define pb push_back
#define all(lmao) lmao.begin(), lmao.end()
using namespace std;
typedef pair<int,int> pii;
typedef tuple<int,int,int> tp;
const int N = 1005;
int block = 555;
const int mod = 1e9 + 7;
//const ll oo = 5e18;
int n, L[N], R[N];
ll f[N][N], inv[N];
ll lt(ll u,ll v){
    if(v == 0) return 1;
    ll x = u, kq = 1;
    while(v){
        if(v & 1) kq = kq * x % mod;
        x = x * x % mod;
        v /= 2;
    }
    return kq;
 
 
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Compilation message (stderr)

boat.cpp: In function 'int main()':
boat.cpp:55:22: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   55 |     for(int i = 1; i < rrh.size(); i ++){
      |                    ~~^~~~~~~~~~~~
boat.cpp:38:16: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)' declared with attribute 'warn_unused_result' [-Wunused-result]
   38 |         freopen(task ".inp","r",stdin);
      |         ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~
boat.cpp:39:16: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)' declared with attribute 'warn_unused_result' [-Wunused-result]
   39 |         freopen(task ".out","w",stdout);
      |         ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~

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