Submission #839858

#	TimeUTC-0	Username	Problem	Language	Result	Execution time	Memory
839858	2023-08-30 19:03:27	popovicirobert	Boat (APIO16_boat)	C++14	36 / 100	284 ms	13272 KiB

boat

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#include <bits/stdc++.h>
 
using namespace std;
constexpr int MOD = (int) 1e9 + 7;
inline int logpow(int a, int b) {
    int answer = 1;
    while (b > 0) {
        if (b & 1) answer = (1LL * answer * a) % MOD;
        b >>= 1;
        a = (1LL * a * a) % MOD;
    }
    return answer;
}
inline void add(int& x, int y) {
    x += y;
    if (x >= MOD)
        x -= MOD;
}
constexpr int MAXN = 505;
int dp[2][3 * MAXN + 1][MAXN + 1];
int sp[2][3 * MAXN + 1];
 
int main() {
#ifdef HOME
    ifstream cin("input.in");
 
 
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Compilation message (stderr)

boat.cpp: In function 'int main()':
boat.cpp:113:40: warning: suggest parentheses around '-' in operand of '&' [-Wparentheses]
  113 |                 dp[i & 1][j][k] = dp[1 - i & 1][j][k];
      |                                      ~~^~~
boat.cpp:116:43: warning: suggest parentheses around '-' in operand of '&' [-Wparentheses]
  116 |                 add(dp[i & 1][j][1], sp[1 - i & 1][j - 1]);
      |                                         ~~^~~
boat.cpp:118:47: warning: suggest parentheses around '-' in operand of '&' [-Wparentheses]
  118 |                     add(dp[i & 1][j][k], dp[1 - i & 1][j][k - 1]);
      |                                             ~~^~~

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