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lec10_49.cpp
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69 lines (47 loc) Β· 1.32 KB
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//{ Driver Code Starts
#include <bits/stdc++.h>
using namespace std;
// } Driver Code Ends
class Solution {
public:
int perfectSum(vector<int>& num, int tar) {
int n = num.size();
vector<int> prev(tar+1,0) , cur(tar+1);
prev[0] = cur[0] = 1;
if(num[0] <=tar ) prev[num[0]] = 1;
for (int ind = 1; ind < n; ind++) {
for (int sum = 0; sum <= tar; sum++) {
int notTake = prev[sum];
int take = 0;
if (num[ind] <= sum) take = prev[sum - num[ind]];
cur[sum] = notTake + take;
}
prev = cur;
}
return prev[tar];
}
};
//{ Driver Code Starts.
int main() {
int t;
cin >> t;
cin.ignore(); // Ignore newline character after t
while (t--) {
vector<int> arr;
int target;
string inputLine;
getline(cin, inputLine); // Read the array input as a line
stringstream ss(inputLine);
int value;
while (ss >> value) {
arr.push_back(value);
}
cin >> target;
cin.ignore(); // Ignore newline character after target input
Solution solution;
cout << solution.perfectSum(arr, target);
cout << "\n~\n";
}
return 0;
}
// } Driver Code Ends