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#include <iostream>
unsigned int findSpace(const char* text, unsigned int start, unsigned int size) {
for (unsigned int i = start; i < size; i++)
if (text[i] == ' ')
return i;
return size;
}
void fitToColumns(char* text, unsigned int size, unsigned int columns) {
unsigned indexInColumn = 0;
unsigned int lastSpace = size;
for (unsigned int i = 0; i < size; i++) {
if (text[i] == ' ')
lastSpace = i;
if (indexInColumn == columns) {
// Ако следващия знак е шпация, разделяме реда на него,
// вместо на предходна шпация (ако има такава).
// Това побира по-добре нашите полета и оправя пример 3.
if (i + 1 < size && text[i + 1] == ' ')
lastSpace = i + 1;
else if (i + 1 == size)
return;
if (lastSpace >= size)
lastSpace = findSpace(text, i, size);
if (lastSpace >= size)
return;
text[lastSpace] = '\n';
i = lastSpace + 1;
indexInColumn = 0;
lastSpace = size;
}
else {
indexInColumn++;
}
}
}
char* getInput(unsigned &allocated, unsigned &size);
int main() {
unsigned int allocated, size;
char* text = getInput(allocated, size);
unsigned int columns;
std::cin >> columns;
fitToColumns(text, size, columns - 1);
std::cout << text << std::endl;
delete[] text;
return 0;
}
char* getInput(unsigned &allocated, unsigned &size) {
allocated = 8;
size = 0;
char* input = new char[allocated];
char curr;
std::cin.get(curr);
while (curr != '\n') {
input[size++] = curr;
std::cin.get(curr);
// Реоразмеряване
if (size >= allocated) {
allocated *= 2;
char* newSentenceArray = new char[allocated];
for (unsigned i = 0; i < size; i++)
newSentenceArray[i] = input[i];
delete[] input;
input = newSentenceArray;
}
}
input[size] = '\0';
return input;
}
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