Compilare: main.cpp: In function 'int main()': main.cpp:19:30: warning: comparison of integer expressions of different signedness: 'size_t' {aka 'long unsigned int'} and 'int' [-Wsign-compare] 19 | for (size_t i = 1; i <= n; ++i) { | ~~^~~~ main.cpp:20:38: warning: comparison of integer expressions of different signedness: 'size_t' {aka 'long unsigned int'} and 'int' [-Wsign-compare] 20 | for (size_t j = 1; j <= n; ++j) { | ~~^~~~ main.cpp:29:30: warning: comparison of integer expressions of different signedness: 'size_t' {aka 'long unsigned int'} and 'int' [-Wsign-compare] 29 | for (size_t k = 2; k <= n; ++k) { | ~~^~~~ main.cpp:31:38: warning: comparison of integer expressions of different signedness: 'size_t' {aka 'long unsigned int'} and 'int' [-Wsign-compare] 31 | for (size_t i = k; i <= n; ++i) { | ~~^~~~ main.cpp:32:46: warning: comparison of integer expressions of different signedness: 'size_t' {aka 'long unsigned int'} and 'int' [-Wsign-compare] 32 | for (size_t j = k; j <= n; ++j) { | ~~^~~~ main.cpp:42:50: warning: comparison of integer expressions of different signedness: 'size_t' {aka 'long unsigned int'} and 'int' [-Wsign-compare] 42 | for (size_t m = k + 1; m <= n; ++m) { | ~~^~~~