Compilare: main.cpp: In function 'int main()': main.cpp:17:22: warning: comparison of integer expressions of different signedness: 'int' and 'size_t' {aka 'long unsigned int'} [-Wsign-compare] 17 | for(int i = 0; i < n; ++i){ | ~~^~~ main.cpp:35:22: warning: comparison of integer expressions of different signedness: 'int' and 'size_t' {aka 'long unsigned int'} [-Wsign-compare] 35 | for(int i = 1; i <= m && c == 0; ++i){ | ~~^~~~ main.cpp:36:26: warning: comparison of integer expressions of different signedness: 'int' and 'size_t' {aka 'long unsigned int'} [-Wsign-compare] 36 | for(int j = 0; j < n && c == 0; ++j){ | ~~^~~ main.cpp:23:9: warning: unused variable 'mul' [-Wunused-variable] 23 | int mul = 1; | ^~~