/C++/C++ convert vector of digits into integer

C++ convert vector of digits into integer

// Convert vector of digits to integer
long long vector_to_int(vector<int> num) { 
    long long n = 0;
    int N = num.size();
    for (int i = 0; i < N; i++) {
        n += num[i]*pow(10, N-i-1);
    }
    return n;
}

C++ convert integer to digits, as vector

// Convert integer to vector of digits
vector<int> int_to_vector(long long n) { 
    vector<int> vec;
    while (n != 0) {
        vec.push_back(n%10);
        n /= 10;
    }
    reverse(vec.begin(), vec.end());
    return vec;
}

Similar codes

9 votes118 views3 answers
Max function in c++
C++
1 vote91 views2 answers
C++ Split String By Space into Vector
C++
0 vote90 views1 answer
C++ set count
C++
1 vote105 views1 answer
C++ power
C++
0 vote94 views1 answer
Javascript if else exercises
C++
0 vote91 views2 answers
Read a file line by line c++ struct site:stackoverflow.com
C++
2 votes96 views2 answers
Cpp split string by space
C++
0 vote96 views1 answer
Check whether K-th bit is set or not c++
C++
0 vote88 views1 answer
Size of a matrix c++
C++
3 votes105 views1 answer
Rick astley - never gonna give you up
C++