-
Notifications
You must be signed in to change notification settings - Fork 33
/
The_Coin_Change_Problem(HACKERRANK).cpp
119 lines (85 loc) · 2.34 KB
/
The_Coin_Change_Problem(HACKERRANK).cpp
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
#include <bits/stdc++.h>
using namespace std;
string ltrim(const string &);
string rtrim(const string &);
vector<string> split(const string &);
/*
* Complete the 'getWays' function below.
*
* The function is expected to return a LONG_INTEGER.
* The function accepts following parameters:
* 1. INTEGER n
* 2. LONG_INTEGER_ARRAY c
*/
long getWays(int n, vector<long> S) {
int m = S.size();
long dp[m+1][n+1];
for(int i=0;i<=m;i++)
dp[i][0]=1;
for(int i=1;i<=n;i++)
dp[0][i]=0;
for(int i=1;i<=m;i++)
{
for(int j=1;j<=n;j++)
{
if(S[i-1]<=j)
{
dp[i][j]= dp[i][j-S[i-1]] + dp[i-1][j];
}
else
{
dp[i][j]=dp[i-1][j];
}
}
}
return dp[m][n];
}
int main()
{
ofstream fout(getenv("OUTPUT_PATH"));
string first_multiple_input_temp;
getline(cin, first_multiple_input_temp);
vector<string> first_multiple_input = split(rtrim(first_multiple_input_temp));
int n = stoi(first_multiple_input[0]);
int m = stoi(first_multiple_input[1]);
string c_temp_temp;
getline(cin, c_temp_temp);
vector<string> c_temp = split(rtrim(c_temp_temp));
vector<long> c(m);
for (int i = 0; i < m; i++) {
long c_item = stol(c_temp[i]);
c[i] = c_item;
}
// Print the number of ways of making change for 'n' units using coins having the values given by 'c'
long ways = getWays(n, c);
fout << ways << "\n";
fout.close();
return 0;
}
string ltrim(const string &str) {
string s(str);
s.erase(
s.begin(),
find_if(s.begin(), s.end(), not1(ptr_fun<int, int>(isspace)))
);
return s;
}
string rtrim(const string &str) {
string s(str);
s.erase(
find_if(s.rbegin(), s.rend(), not1(ptr_fun<int, int>(isspace))).base(),
s.end()
);
return s;
}
vector<string> split(const string &str) {
vector<string> tokens;
string::size_type start = 0;
string::size_type end = 0;
while ((end = str.find(" ", start)) != string::npos) {
tokens.push_back(str.substr(start, end - start));
start = end + 1;
}
tokens.push_back(str.substr(start));
return tokens;
}