Compilare: main.cpp: In function 'int main()': main.cpp:13:18: warning: comparison of integer expressions of different signedness: 'int' and 'size_t' {aka 'long unsigned int'} [-Wsign-compare] 13 | for(j=k;j<=strlen(c);j++){ | ~^~~~~~~~~~~ main.cpp:22:14: warning: comparison of integer expressions of different signedness: 'int' and 'size_t' {aka 'long unsigned int'} [-Wsign-compare] 22 | for(j=0;j<strlen(c);j++) | ~^~~~~~~~~~