Leimasin

In file included from /usr/include/c++/11/cassert:44,
                 from input/code.cpp:5:
input/code.cpp: In function 'int main()':
input/code.cpp:15:32: warning: comparison of integer expressions of different signedness: 'std::__cxx11::basic_string<char>::size_type' {aka 'long unsigned int'} and 'int' [-Wsign-compare]
   15 |         assert(leimasin.size() == m);
      |                ~~~~~~~~~~~~~~~~^~~~
input/code.cpp:18:30: warning: comparison of integer expressions of different signedness: 'size_t' {aka 'long unsigned int'} and 'int' [-Wsign-compare]
   18 |         for (size_t i = 0; i < k; ++i)
      |                            ~~^~~
input/code.cpp:32:38: warning: comparison of integer expressions of different signedness: 'size_t' {aka 'long unsigned int'} and 'int' [-Wsign-compare]
   32 |                 for (size_t i = 0; i < m; ++i)
      |                                    ~~^~~

#include <iostream>
#include <sstream>
#include <vector>
#include <string>
#include <cassert>

int main(void)
{
	int n, m, k;
	std::cin >> n >> m >> k;

	std::string leimasin;
	std::cin >> leimasin;

	assert(leimasin.size() == m);
	std::vector<size_t> kohdat;

	for (size_t i = 0; i < k; ++i)
	{
		int kohta;
		std::cin >> kohta;
		kohdat.push_back(kohta);
	}

	for (auto kohta : kohdat)
		std::cout << kohta << " ";
	std::cout << std::endl;

	std::string mj = std::string(n, '.');
	for (auto kohta : kohdat)
	{
		for (size_t i = 0; i < m; ++i)
		{
			mj[kohta + i] = leimasin[i];
		}
	}
	std::cout << mj << std::endl;
}

Test 1

Group: 1, 2, 3

Verdict: WRONG ANSWER

Test 2

Group: 1, 2, 3

Verdict: WRONG ANSWER

Test 3

Group: 1, 2, 3

Verdict: WRONG ANSWER

Test 4

Group: 1, 2, 3

Verdict: WRONG ANSWER

Test 5

Group: 2, 3

Verdict: WRONG ANSWER

Test 6

Group: 2, 3

Verdict: WRONG ANSWER

Test 7

Group: 2, 3

Verdict: WRONG ANSWER

Test 8

Group: 2, 3

Verdict: WRONG ANSWER

Test 9

Group: 3

Verdict: WRONG ANSWER

Test 10

Group: 3

Verdict: WRONG ANSWER

Test 11

Group: 3

Verdict: WRONG ANSWER

Test 12

Group: 3

Verdict: TIME LIMIT EXCEEDED

Test 13

Group: 3

Verdict: TIME LIMIT EXCEEDED

Test 14

Group: 3

Verdict: TIME LIMIT EXCEEDED