Compilare: main.cpp: In function 'int main()': main.cpp:79:26: warning: comparison of integer expressions of different signedness: 'long long int' and 'size_t' {aka 'long unsigned int'} [-Wsign-compare] 79 | for(int j = 0; j < strlen(s); ++ j) | ~~^~~~~~~~~~~ main.cpp:90:26: warning: comparison of integer expressions of different signedness: 'long long int' and 'size_t' {aka 'long unsigned int'} [-Wsign-compare] 90 | for(int j = 0; j < strlen(s); ++ j) | ~~^~~~~~~~~~~