Compilare: main.cpp: In function 'int main()': main.cpp:18:23: warning: comparison of integer expressions of different signedness: 'int' and 'size_t' {aka 'long unsigned int'} [-Wsign-compare] 18 | for(int i=0; i<=strlen(s)-1; i++) | ~^~~~~~~~~~~~~ main.cpp:49:23: warning: comparison of integer expressions of different signedness: 'int' and 'size_t' {aka 'long unsigned int'} [-Wsign-compare] 49 | for(int i=2; i<=strlen(s)-1; i++) | ~^~~~~~~~~~~~~ main.cpp:59:23: warning: comparison of integer expressions of different signedness: 'int' and 'size_t' {aka 'long unsigned int'} [-Wsign-compare] 59 | for(int i=0; i<=strlen(st)-1; i++) | ~^~~~~~~~~~~~~~ main.cpp:51:58: warning: 'st[<unknown>]' may be used uninitialized in this function [-Wmaybe-uninitialized] 51 | while(strlen(st)>=2 && s[i] > st[strlen(st)-1] && st[strlen(st)-1] < st[strlen(st)-2]) | ~~~~~~~~~~~~~~~^ main.cpp:51:97: warning: 'st[<unknown>]' may be used uninitialized in this function [-Wmaybe-uninitialized] 51 | while(strlen(st)>=2 && s[i] > st[strlen(st)-1] && st[strlen(st)-1] < st[strlen(st)-2]) | ~~~~~~~~~~~~~~~^ main.cpp:60:23: warning: '*((char*)& st)' may be used uninitialized in this function [-Wmaybe-uninitialized] 60 | fout<<st[i]; | ~~~~^