Submission #62686

#	TimeUTC-0	Username	Problem	Language	Result	Execution time	Memory
62686	2018-07-29 18:44:05	SpaimaCarpatilor	Solitaire (JOI16_solitaire)	C++17	100 / 100	112 ms	1172 KiB

solitaire

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#include<bits/stdc++.h>
using namespace std;
int N, x[2018];
char sir[3][2018];
const int mod = 1e9 + 7;
int add (int x, int y) {int ans = x + y; if (ans >= mod) ans -= mod; return ans;}
int subtract (int x, int y) {if (x >= y) return x - y; return x - y + mod;}
int mul (int x, int y) {return 1LL * x * y % mod;}
void adto (int &x, int y) {x += y; if (x >= mod) x -= mod;}
int power (int a, int b)
{
    int p = 1;
    for (int i=0; (1<<i) <= b; i++)
    {
        if (b & (1 << i)) p = mul (p, a);
        a = mul (a, a);
    }
    return p;
}
int inv[6009], fac[6009];
void Prec (int lim){fac[0] = inv[0] = 1;for (int i=1; i<=lim; i++)fac[i] = mul (fac[i - 1], i);
inv[lim] = power (fac[lim], mod - 2);for (int i=lim - 1; i>=0; i--)inv[i] = mul (inv[i + 1], i + 1);}
int comb (int N, int K){if (K > N || N < 0 || K < 0) return 0;
int ans = mul (fac[N], inv[N - K]);ans = mul (ans, inv[K]);return ans;}
 
 
הההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההה
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Compilation message (stderr)

solitaire.cpp: In function 'int main()':
solitaire.cpp:145:19: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
 scanf ("%d\n", &N), Prec (3 * N + 1);
 ~~~~~~~~~~~~~~~~~~^~~~~~~~~~~~~~~~~~
solitaire.cpp:148:11: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
     scanf ("%s", sir[i] + 1);
     ~~~~~~^~~~~~~~~~~~~~~~~~

• Subtask 1: 10 / 10
• Subtask 2: 12 / 12
• Subtask 3: 20 / 20
• Subtask 4: 38 / 38
• Subtask 5: 20 / 20