Laskutoimitus

#include <iostream>
#include <climits>
#include <cmath>
#include <iomanip>
#include <map>
#include <set>
#include <vector>

using namespace std;

using Z = long long int;

constexpr Z M = 1000000007;

Z mul(Z a, Z b) {
    return a * b % M;
}
Z add(Z a, Z b) {
    return (a + b) % M;
}

int main() {
    cin.sync_with_stdio(false);
    cin.tie(nullptr);

    string S;
    cin >> S;

    Z numerolkm = 0;
    Z numerosumma = 0;
    //Z kokonumero = 0;
    //Z kerroinsumma = 0;
    Z tulos = 0;
    for(char c : S) {
        if(c >= '1' && c <= '9') {
            numerosumma = add(mul(10, numerosumma), mul(numerolkm + 1, c - '0'));
            ++numerolkm;
        } else if(c == '+') {
            throw 5;
        } else if(c == '*') {
            throw 5;
        } else {
            throw 5;
        }
        tulos = add(tulos, numerosumma);
    }

    cout << tulos << "\n";

    return 0;
}

Test 1

Group: 1, 2, 6

Verdict: RUNTIME ERROR

terminate called after throwing an instance of 'int'

Test 2

Group: 1, 2, 6

Verdict: RUNTIME ERROR

terminate called after throwing an instance of 'int'

Test 3

Group: 1, 2, 3, 4, 5, 6

Verdict: ACCEPTED

Test 4

Group: 2, 6

Verdict: RUNTIME ERROR

terminate called after throwing an instance of 'int'

Test 5

Group: 2, 6

Verdict: RUNTIME ERROR

terminate called after throwing an instance of 'int'

Test 6

Group: 2, 3, 4, 5, 6

Verdict: ACCEPTED

Test 7

Group: 6

Verdict: RUNTIME ERROR

terminate called after throwing an instance of 'int'

Test 8

Group: 6

Verdict: RUNTIME ERROR

terminate called after throwing an instance of 'int'

Test 9

Group: 3, 4, 5, 6

Verdict: ACCEPTED

Test 10

Group: 4, 6

Verdict: RUNTIME ERROR

terminate called after throwing an instance of 'int'

Test 11

Group: 4, 6

Verdict: RUNTIME ERROR

terminate called after throwing an instance of 'int'

Test 12

Group: 5, 6

Verdict: RUNTIME ERROR

terminate called after throwing an instance of 'int'

Test 13

Group: 5, 6

Verdict: RUNTIME ERROR

terminate called after throwing an instance of 'int'