/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

0 vote165 views2 answers
Ue4 c++ enum variable declaration
C++
9 votes106 views1 answer
C++ code to print hello world
C++
6 votes104 views2 answers
Index string c++
C++
0 vote112 views1 answer
Vs_buildtools.exe --norestart --passive --downloadThenInstall --includeRecommended --add Microsoft.VisualStudio.Workload.NativeDesktop --add Microsoft.VisualStudio.Workload.VCTools --add Microsoft.VisualStudio.Workload.MSBuildTools
C++
0 vote121 views1 answer
C++ initialize size of 3d vector
C++
0 vote106 views1 answer
Move mouse c++
C++
2 votes123 views1 answer
Arduino struct
C++
14 votes103 views5 answers
Find length of array c++
C++
-1 vote117 views1 answer
String array 2d c++
C++
0 vote104 views1 answer
Life the universe and everything solution c++
C++