CF D 4 ошибка исполнения тест 2

#include <iostream>
#include <cmath>
#include <vector>
#include <queue>
#include <algorithm>
#include <string>
#include <stack>
#include <set>
#include <map>
#define pii pair <int,int>
#define vec vector
using namespace std;
using ll = long long;
using ld = long double;
using db = double;
void cv(vector <int> &v){
    for (auto x: v) cout<<x<<' ';
    cout<<"\n";
}

void cvl(vector <ll> &v){
    for (auto x: v) cout<<x<<' ';
    cout<<"\n";
}


void cvv(vector <vector <int> > &v){
    for (auto x: v) cv(x);
    cout<<"\n";
}

void cvb(vector <bool> v){
    for (bool x: v) cout<<x<<' ';
    cout<<"\n";
}

void cvs(vector <string>  v){
    for (auto a: v){
        cout<<a<<"\n";
    }
}

void cvp(vector <pii> a){
    for (auto p: a){
        cout<<p.first<<' '<<p.second<<"\n";
    }
    cout<<"\n";
}

bool sh=0;

string t;
int n;
vector <string> sv;

struct in{
    int fr,  ln,  ids;
};

bool cmp(in a, in b){
    return a.fr < b.fr || a.fr == b.fr && a.ln > b.ln;
}

void slv(){

    cin>>t>>n;
    sv.resize(n);
    for (string &i: sv) cin>>i;
    vector <in> al;

    if (sh){
        cout<<"A\n";
    }

    in x;
    int id=-1;
    for (string s: sv){
        id++;

        if (sh){
            //cout<<"id s = "<<id<<' '<<s<<"\n";
        }

        for (int i = 0; i <= t.size() - s.size(); ++i){
            if (t.substr(i, s.size()) == s){

                if (sh){
                    //cout<<"found\n";
                }

                x = {i, s.size(), id};
                al.push_back(x);
            }
        }
    }
    /*
abacabaca
3
aba
bac
aca


*/

    sort(al.begin(), al.end(), cmp);
    if (al.empty()){
        cout<<-1<<"\n";
        return;
    }
    int from=0,to=0;
    vector <pii> ans;//опследовательность жадных ходов
    id=0;//ЖАДНОСТЬ
    bool can=1;
    pii mv; // move

    if (sh){
        cout<<"B\n";
        cout<<"al.size() = "<<al.size()<<"\n";
        cout<<"al\n";
        for (auto p: al){
            cout<<p.fr<<' '<<p.ln<<' '<<p.ids<<"\n";
        }
    }

    while (from < t.size() && to < t.size()){
        vector <pii> now; //{длина за зоной изведанного, id из al}
        //id = from;

        if (sh){
            cout<<"from  to = "<<from<<' '<<to<<"\n";
        }

        while (id < al.size() && al[id].fr <= to){
            now.push_back({al[id].fr + al[id].ln - 1 - (to - 1), id});

            if (sh){
                    cout<<"id = "<<id<<"\n";
            }

            id++;
        }


        sort(now.begin(), now.end());
        reverse(now.begin(), now.end());

        if (sh){
            //cout<<"C\n";

            cout<<"now\n";
            cvp(now);
            if (sh){
                cout<<"ans\n";
                cvp(ans);
            }
        }

        //берем первый
        if (now.empty() || !now.empty() && now[0].first <= 0){//значит не переплюнули границу неизведанного
            can=0;
            break;
        }
        in gd = al[now[0].second];
        to = gd.fr + gd.ln;
        mv = {gd.ids, gd.fr};
        ans.push_back(mv);
        from++;
    }

    if (sh){
        cout<<"id = "<<id<<"\n";
        cout<<"NIGGER ASS FUCK\n";
    }

    if (!can){
        cout<<-1<<"\n";
        return;
    }

    cout<<ans.size()<<"\n";
    for (auto p: ans){
        cout<<(p.first+1)<<' '<<(p.second+1)<<"\n";
    }
}

/*
На 2м тесте все вылетает -- проверь, а на 1м WA
*/
/*
abacabaca
3
aba
bac
aca

*/
int main()
{
    ios::sync_with_stdio(0);
    cin.tie(0);
    cout.tie(0);
    int q=1;
    if (!sh) cin>>q;
    for (int go=0;go<q;++go){
        slv();
    }
}