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  1. #include <bits/stdc++.h>
  2. using namespace std;
  3. #define int              long long int
  4. #define double           long double
  5. #define print(a)         for(auto x : a) cout << x << " "; cout << endl
  6.  
  7.  
  8. const int M = 1000000007;
  9. const int N = 3e5+9;
  10. const int INF = 2e9+1;
  11. const int LINF = 2000000000000000001;
  12.  
  13. inline int power(int a, int b, int mod=M) {
  14.     int x = 1;
  15.     a %= mod;
  16.     while (b) {
  17.         if (b & 1) x = (x * a) % mod; 
  18.         a = (a * a) % mod;
  19.         b >>= 1;
  20.     }
  21.     return x;
  22. }
  23.  
  24.  
  25. //_ ***************************** START Below *******************************
  26.  
  27.  
  28.  
  29.  
  30. vector<int> a;
  31.  
  32. int consistency(int n, int m, int x){
  33. 	if(n==1 && x == 1) return 1;
  34. 	if(n==1 && x != 1) return 0;
  35.  
  36. 	vector<vector<int>> dp(n+1, vector<int>(x+1, 0));
  37.  
  38. 	dp[0][0] = 1;
  39. 	dp[1][1] = 1;
  40.  
  41.  
  42. 	for(int i=2; i<=n; i++){
  43.  
  44. 		for(int k=1; k<=x; k++){
  45.  
  46. 			int j = i-1;
  47. 			int sum = a[i];
  48. 			while(j>=0 && sum <= m ){
  49. 				dp[i][k] +=  dp[j][k-1];
  50.  
  51. 				sum += a[j];
  52. 				j--;
  53. 			}
  54. 		}
  55. 	}
  56.  
  57. 	return dp[n][x];
  58. }
  59.  
  60.  
  61.  
  62.  
  63.  
  64.  
  65.  
  66.  
  67.  
  68.  
  69.  
  70.  
  71.  
  72.  
  73.  
  74. int practice(int n, int m, int k){
  75.  
  76.  
  77.     return 0;
  78. }
  79.  
  80.  
  81.  
  82.  
  83.  
  84. void solve() {
  85.  
  86.     int n, m, k;
  87.     cin >> n >> m >> k;
  88.  
  89.     a.resize(n+1);
  90.     for(int i=1; i<=n; i++) cin >> a[i];
  91.  
  92.     cout << consistency(n, m, k) << endl;
  93.  
  94.  
  95. }
  96.  
  97.  
  98.  
  99.  
  100.  
  101. int32_t main() {
  102.     ios_base::sync_with_stdio(0); cin.tie(0); cout.tie(0);
  103.  
  104.     int t = 1;
  105.     // cin >> t;
  106.     while (t--) {
  107.         solve();
  108.     }
  109.  
  110.     return 0;
  111. }
Success #stdin #stdout 0s 5324KB
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https://ideone.com/3O2AEk
language:
C++14 (gcc 8.3)
created:
5 hours ago
visibility:
public

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