Day6Part2

#include <iostream>
#include <vector>
using namespace std;


void resolver(vector<string> problems) {
    long totalsum = 0;
    bool operador;
    int resparcial = 0;
    string numstr = "";
    vector<int> problem;
    for(int i = problems.front().size() -1; i >= 0 ;--i){
        for(int j = 0; j < problems.size()-1; j++) {
            if (problems[j][i] != ' ') {
                numstr += problems[j][i];
            }
        }
        if (problems[problems.size()-1][i] == '+') {
                if (numstr != "") { // Primer espacio después de leer números
                    printf("%i,", stoi(numstr));
                    problem.push_back(stoi(numstr));
                    numstr = "";
                }
                resparcial = 0;
                for (int& x: problem) {
                    resparcial += x;
                }
                printf("+=%i\n",resparcial);
                totalsum+=resparcial;
                numstr = "";
                problem.clear();
            } else if (problems[problems.size()-1][i] == '*'){
                if (numstr != "") { // Primer espacio después de leer números
                    printf("%i,", stoi(numstr));
                    problem.push_back(stoi(numstr));
                    numstr = "";
                }
                resparcial = 1;
                for (int& x: problem) {
                    resparcial *= x;
                }
                printf("*=%i\n",resparcial);
                totalsum+=resparcial;
                numstr = "";
                problem.clear();
            } else if (problems[problems.size()-1][i] == ' ') {
                if (numstr != "") { // Primer espacio después de leer números
                    printf("%i,", stoi(numstr));
                    problem.push_back(stoi(numstr));
                    numstr = "";
                }
            }
    }
    printf("%li\n",totalsum);
}


int main() {
    string line;
    getline(cin, line);
    vector<string> problems;
    while(line != "") {
        problems.push_back(line);
        getline(cin, line);
    }

    resolver(problems);
}