Text Alignment

input/code.cpp: In function 'int main()':
input/code.cpp:56:20: warning: statement has no effect [-Wunused-value]
   56 | #define debug(...) 42
      |                    ^~
input/code.cpp:74:5: note: in expansion of macro 'debug'
   74 |     debug(v);
      |     ^~~~~

#include <bits/stdc++.h>
using namespace std;
 
#define rep(i, a, b) for(int i = a; i < (b); ++i)
#define all(x) begin(x), end(x)
#define sz(x) (int)(x).size()
typedef long long ll;
typedef pair<int, int> pii;
typedef vector<int> vi;
 
string to_string(string s) {
    return '"' + s + '"';
}
 
string to_string(const char* s) {
    return to_string((string) s);
}
 
string to_string(bool b) {
    return (b ? "true" : "false");
}
 
template <typename A, typename B>
string to_string(pair<A, B> p) {
    return "(" + to_string(p.first) + ", " + to_string(p.second) + ")";
}
 
template <typename A>
string to_string(A v) {
    bool first = true;
    string res = "{";
    for (const auto &x : v) {
        if (!first) {
            res += ", ";
        }
        first = false;
        res += to_string(x);
    }
    res += "}";
    return res;
}
 
void debug_out() {
    cerr << endl;
}
 
template <typename Head, typename... Tail>
void debug_out(Head H, Tail... T) {
    cerr << " " << to_string(H);
    debug_out(T...);
}
 
#ifdef LOCAL
#define debug(...) cerr << "[" << #__VA_ARGS__ << "]:", debug_out(__VA_ARGS__)
#else
#define debug(...) 42
#endif
 
signed main() {
    cin.tie(0)->sync_with_stdio(0);
    cin.exceptions(cin.failbit); // RTE if input wrong datatype
 
    string s;
    getline(cin, s);
 
    stringstream st(s);
 
    vector<string> v;
    string cur;
    while (st >> cur) {
        if (sz(cur)) v.push_back(cur);
    }
 
    debug(v);
 
    int curlen = 0;
    vector<string> curv;
    for (int i = 0; i < sz(v); i++) {
        curlen += sz(v[i]) + 1;
        curv.push_back(v[i]);
        if (i == sz(v) - 1 || curlen + sz(v[i + 1]) + 1 >= 50 || (sz(curv) != 1 && i == sz(v) - 3)) {
            int need = 50 - (curlen - 1);
            // debug(need);
            curv.back() = string(need, ' ') + curv.back();
            for (int j = 0; j < sz(curv); j++) {
                cout << curv[j];
                if (j != sz(curv) - 1) cout << ' ';
            }
            cout << '\n';
            curlen = 0;
            curv.clear();
        }
    }
}

Test 1

Verdict: ACCEPTED

Test 2

Verdict: ACCEPTED

Test 3

Verdict: ACCEPTED

Test 4

Verdict: ACCEPTED

Test 5

Verdict: ACCEPTED

Test 6

Verdict: ACCEPTED

Test 7

Verdict: ACCEPTED

Test 8

Verdict: ACCEPTED

Test 9

Verdict: ACCEPTED

Test 10

Verdict: ACCEPTED

Test 11

Verdict: ACCEPTED

Test 12

Verdict: ACCEPTED

Test 13

Verdict: ACCEPTED