My program keeps crashing. The problem seems to be in the for loop or the recursive f

[SaleSacko]

This is the program - its supposed to flood fill a vector, but it keeps crashing upon me running it. The problem seems to be in both the for loops and the fill void

#include <iostream>
#include <vector>

using namespace std;


void fill ( vector <vector  <int> > k, int a, int b  ) {
	

if (k[a][b+1] != 1) {
	k[a][b+1] = 1;
	fill(k, a, b + 1);
}

if (k[a][b-1] != 1) {
	k[a][b-1] = 1;
	fill(k, a, b);
} if (k[a+1][b] != 1) {
	k[a + 1][b] = 1;
	fill(k, a + 1, b);
} if (k[a - 1][b] != 1) {
	k[a - 1][b+1] = 1;
	fill(k, a - 1, b);
}
}

int main () {
	int a,b;
vector <vector <int> >  op;
for ( int i = 0; i < 5; i++ ) {
	for ( int j = 0; j < 5; j++) {
	
		cin  >> op[i][j] ;
		
		
	}
	
	
}

cin >> a >> b;

for ( int i = 0; i < 5; i++ ) {
	for ( int j = 0; i < 5; j++) {
	
		cout << op[i][j];
		
		
	}
	
	
}
fill(op,a,b);
}

[SioSio]

Line 30,Type miss in for statement

for ( int j = 0; j < 5; j++) {

Use push_back function or emplace_back function to add elements to the vector.

In this case, the size of the vector is fixed (5x5),
Declare as follows:

vector <vector <int>> op (5, vector <int> (5));

[guyfrench]

Thank you very much for the very detailed help!