kronican.cpp: In function 'int main()':
kronican.cpp:26:26: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
for(int i = 0; i < v.size(); i++) {
~~^~~~~~~~~~
kronican.cpp:27:30: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
for(int j = 0; j < v.size(); j++) if(i != j) {
~~^~~~~~~~~~
kronican.cpp:12:10: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
scanf("%d %d", &n, &k);
~~~~~^~~~~~~~~~~~~~~~~
kronican.cpp:15:18: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
scanf("%d", &a[i][j]);
~~~~~^~~~~~~~~~~~~~~~