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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. bool consistency(int n, int t){
  33.  
  34. 	vector<vector<bool>> dp(n+1, vector<bool>(t+1, false));
  35.  
  36. 	for(int i=0; i<=n; i++) dp[i][0] = true;
  37.  
  38. 	for(int i=1; i<=n; i++){
  39.  
  40. 		for(int j=1; j<=t; j++){
  41. 			dp[i][j] = dp[i-1][j];
  42. 			if(j-a[i-1] >= 0) dp[i][j] = dp[i][j] || dp[i-1][j-a[i-1]];
  43. 		}
  44. 	}
  45.  
  46. 	return dp[n][t];
  47. }
  48.  
  49.  
  50.  
  51.  
  52.  
  53.  
  54.  
  55.  
  56.  
  57.  
  58.  
  59.  
  60.  
  61.  
  62.  
  63. bool practice(int n, int t){
  64.  
  65.  
  66.     return 0;
  67. }
  68.  
  69.  
  70.  
  71.  
  72.  
  73. void solve() {
  74.  
  75.     int n, t;
  76.     cin>> n >> t;
  77.  
  78.     a.resize(n);
  79.     for(int i=0; i<n; i++) cin >> a[i];
  80.  
  81.     cout << boolalpha << consistency(n, t) << endl;
  82.  
  83.  
  84. }
  85.  
  86.  
  87.  
  88.  
  89.  
  90. int32_t main() {
  91.     ios_base::sync_with_stdio(0); cin.tie(0); cout.tie(0);
  92.  
  93.     int t = 1;
  94.     // cin >> t;
  95.     while (t--) {
  96.         solve();
  97.     }
  98.  
  99.     return 0;
  100. }
Success #stdin #stdout 0.01s 5292KB
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stdin
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6 9
3 34 4 12 5 2
stdout
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true
https://ideone.com/vWFU6q
language:
C++14 (gcc 8.3)
created:
3 days ago
visibility:
public

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