Compilare: main.cpp: In function 'void prefix()': main.cpp:15:19: warning: comparison of integer expressions of different signedness: 'int' and 'size_t' {aka 'long unsigned int'} [-Wsign-compare] 15 | for (i = 2; i < strlen(a); i++) | ~~^~~~~~~~~~~ main.cpp: In function 'int main()': main.cpp:31:19: warning: comparison of integer expressions of different signedness: 'int' and 'size_t' {aka 'long unsigned int'} [-Wsign-compare] 31 | for (i = 1; i <= strlen(b); i++) | ~~^~~~~~~~~~~~ main.cpp:37:15: warning: comparison of integer expressions of different signedness: 'int' and 'size_t' {aka 'long unsigned int'} [-Wsign-compare] 37 | if (q == strlen(a)-1 && out.size() <= 1000) | ~~^~~~~~~~~~~~~~