Compilare: main.cpp: In function 'int main()': main.cpp:23:26: warning: comparison of integer expressions of different signedness: 'size_t' {aka 'long unsigned int'} and 'long int' [-Wsign-compare] 23 | for (size_t i = 0; i < en; i++) | ~~^~~~ main.cpp:27:26: warning: comparison of integer expressions of different signedness: 'size_t' {aka 'long unsigned int'} and 'long int' [-Wsign-compare] 27 | for (size_t i = 0; i < en; i++) | ~~^~~~ main.cpp:29:30: warning: comparison of integer expressions of different signedness: 'size_t' {aka 'long unsigned int'} and 'long int' [-Wsign-compare] 29 | for (size_t j = 1; j < en; j++) | ~~^~~~ main.cpp:31:34: warning: comparison of integer expressions of different signedness: 'size_t' {aka 'long unsigned int'} and 'long int' [-Wsign-compare] 31 | for (size_t k = 1; k < en; k++) | ~~^~~~ main.cpp:37:26: warning: comparison of integer expressions of different signedness: 'size_t' {aka 'long unsigned int'} and 'long int' [-Wsign-compare] 37 | for (size_t i = 0; i < en; i++) | ~~^~~~ main.cpp:39:30: warning: comparison of integer expressions of different signedness: 'size_t' {aka 'long unsigned int'} and 'long int' [-Wsign-compare] 39 | for (size_t j = 1; j < en; j++) | ~~^~~~ main.cpp:41:34: warning: comparison of integer expressions of different signedness: 'size_t' {aka 'long unsigned int'} and 'long int' [-Wsign-compare] 41 | for (size_t k = 1; k < en; k++) | ~~^~~~