Submission #1027242

#	TimeUTC-0	Username	Problem	Language	Result	Execution time	Memory
1027242	2024-07-19 02:38:20	nathan4690	Binaria (CCO23_day1problem1)	C++17	25 / 25	71 ms	29776 KiB

Main

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// CCO '23 P1 - Binaria
#include <bits/stdc++.h>
#define ll long long
#define ld long double
#define el cout << '\n'
#define f1(i,n) for(ll i=1;i<=n;i++)
#define __file_name ""
using namespace std;
const ll maxn = 1e6+5, inf=1e18, mod=1e6+3;
ll n, k, a[maxn], l, r, ans;
char res[maxn];
ll fac[maxn], inv[maxn];
ll powmod(ll base, ll exp){
    if(exp == 0) return 1ll;
    if(exp == 1) return base % mod;
    ll v = powmod(base, exp/2);
    if(exp % 2) return v*v%mod*base%mod;
    else return v*v%mod;
}
void preprocess(){
    fac[0] = 1;
    f1(i,n) fac[i] = fac[i-1] * i % mod;
    inv[n] = powmod(fac[n], mod-2);
    inv[0] = 1;
    for(ll i=n-1;i>=1;i--){
        inv[i] = (inv[i+1] * (i+1)) % mod;
 
 
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Compilation message (stderr)

Main.cpp: In function 'int main()':
Main.cpp:100:16: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)' declared with attribute 'warn_unused_result' [-Wunused-result]
  100 |         freopen(__file_name ".inp","r",stdin);
      |         ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
Main.cpp:101:16: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)' declared with attribute 'warn_unused_result' [-Wunused-result]
  101 |         freopen(__file_name ".out","w",stdout);
      |         ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

• Subtask 1: 3 / 3
• Subtask 2: 3 / 3
• Subtask 3: 4 / 4
• Subtask 4: 4 / 4
• Subtask 5: 4 / 4
• Subtask 6: 7 / 7