Submission #469691

#	TimeUTC-0	Username	Problem	Language	Result	Execution time	Memory
469691	2021-09-01 15:36:07	keta_tsimakuridze	Intergalactic ship (IZhO19_xorsum)	C++14	83 / 100	2025 ms	23980 KiB

xorsum

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#include<bits/stdc++.h>
#define f first
#define s second
#define int long long
#define pii pair<int,int>
using namespace std;
const int N = 1e3 + 5, M = 1e5 + 5, mod = 1e9 + 7; // !
int a[N],n,Q,ch[M][2],pwr[M],dp[5][N][N],p[5][N];
vector<pair<pii,int> > all;
int choose(int x,int t) {
  return ch[x][t];
}
main(){
  cin >> n;
  for(int i = 1; i <= n; i++) cin >> a[i];
  cin >> Q;
  for(int j = 1; j <= Q; j++) {
    int l,r,x;
    cin >> l >> r >> x;
    all.push_back({{l,r},x});
  }
  
  ch[0][0] = 1;
  pwr[0] = 1;
  for(int i = 1; i <= Q; i++) {
    for(int t = 0; t < 2; t++){
      ch[i][t] = ch[i - 1][t] + ch[i - 1][1 - t];
      ch[i][t] %= mod;
    }
    pwr[i] = pwr[i - 1] * 2 % mod;
 
 
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Compilation message (stderr)

xorsum.cpp:13:1: warning: ISO C++ forbids declaration of 'main' with no type [-Wreturn-type]
   13 | main(){
      | ^~~~

• Subtask 1: 4 / 4
• Subtask 2: 5 / 5
• Subtask 3: 6 / 6
• Subtask 4: 0 / 9
• Subtask 5: 8 / 8
• Subtask 6: 11 / 11
• Subtask 7: 19 / 19
• Subtask 8: 30 / 30
• Subtask 9: 0 / 8