Compilare: main.cpp: In function 'int main()': main.cpp:16:18: warning: comparison of integer expressions of different signedness: 'int' and 'unsigned int' [-Wsign-compare] 16 | for(int i=0;i<m;i++){ | ~^~ main.cpp:21:22: warning: comparison of integer expressions of different signedness: 'int' and 'unsigned int' [-Wsign-compare] 21 | for(int j=0;j<n;j++){ | ~^~ main.cpp:33:24: warning: comparison of integer expressions of different signedness: 'unsigned int' and 'int' [-Wsign-compare] 33 | if(element2==-1){ | ~~~~~~~~^~~~ main.cpp:51:22: warning: comparison of integer expressions of different signedness: 'int' and 'unsigned int' [-Wsign-compare] 51 | for(int j=0;j<n;j++){ | ~^~