Text Alignment

input/code.cpp: In function 'std::vector<std::__cxx11::basic_string<char> > fullJustify(std::vector<std::__cxx11::basic_string<char> >&, int)':
input/code.cpp:13:19: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<std::__cxx11::basic_string<char> >::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   13 |     for (i = 0; i < a.size(); i = j) {
      |                 ~~^~~~~~~~~~
input/code.cpp:15:23: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<std::__cxx11::basic_string<char> >::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   15 |         for (j = i; j < a.size() && width + a[j].size() + j - i <= b; j++) {
      |                     ~~^~~~~~~~~~
input/code.cpp:15:65: warning: comparison of integer expressions of different signedness: 'std::__cxx11::basic_string<char>::size_type' {aka 'long unsigned int'} and 'int' [-Wsign-compare]
   15 |         for (j = i; j < a.size() && width +...

#include <algorithm>
#include <iostream>
#include <queue>
#include <vector>
using namespace std;
#include <climits>
#include <string>
using ll = long long int;

vector<string> fullJustify(vector<string> &a, int b) {
    vector<string> result;
    int i, j;
    for (i = 0; i < a.size(); i = j) {
        int width = 0;
        for (j = i; j < a.size() && width + a[j].size() + j - i <= b; j++) {
            width += a[j].size();
        }
        int space = 1;
        int extra = 0;
        if (j - i != 1 && j != a.size()) {
            space = (b - width) / (j - i - 1);
            extra = (b - width) % (j - i - 1);
        }
        string line(a[i]);
        for (int k = i + 1; k < j; k++) {
            line += string(space, ' ');
            if (extra-- > 0) {
                line += " ";
            }
            line += a[k];
        }
        int x = line.size();
        line += string(b - x, ' ');
        result.push_back(line);
    }
    return result;
}

int main() {
    string s;
    vector<string> v;
    while (cin >> s) {
        v.push_back(s);
    }

    vector<string> ans = fullJustify(v, v.size());
    for (int i = 0; i < ans.size(); i++)
        cout << ans[i] << endl;
}

Test 1

Verdict: RUNTIME ERROR

terminate called after throwing an instance of 'std::length_error'
  what():  basic_string...

Test 2

Verdict: RUNTIME ERROR

terminate called after throwing an instance of 'std::length_error'
  what():  basic_string...

Test 3

Verdict: RUNTIME ERROR

terminate called after throwing an instance of 'std::length_error'
  what():  basic_string...

Test 4

Verdict: RUNTIME ERROR

terminate called after throwing an instance of 'std::length_error'
  what():  basic_string...

Test 5

Verdict: RUNTIME ERROR

terminate called after throwing an instance of 'std::length_error'
  what():  basic_string...

Test 6

Verdict: WRONG ANSWER

Test 7

Verdict: WRONG ANSWER

Test 8

Verdict: WRONG ANSWER

Test 9

Verdict: WRONG ANSWER

Test 10

Verdict: WRONG ANSWER

Test 11

Verdict: WRONG ANSWER

Test 12

Verdict: WRONG ANSWER

Test 13

Verdict: WRONG ANSWER