Compilare: main.cpp: In function 'int main()': main.cpp:48:23: warning: comparison of integer expressions of different signedness: 'int' and 'size_t' {aka 'long unsigned int'} [-Wsign-compare] 48 | for (int i = 0; i < strlen(c); i++) | ~~^~~~~~~~~~~ main.cpp:79:23: warning: comparison of integer expressions of different signedness: 'int' and 'size_t' {aka 'long unsigned int'} [-Wsign-compare] 79 | for (int i = 0; i < strlen(rez); i++) | ~~^~~~~~~~~~~~~ main.cpp:84:21: warning: comparison of integer expressions of different signedness: 'int' and 'size_t' {aka 'long unsigned int'} [-Wsign-compare] 84 | while(i < strlen(rez) and isdigit(rez[i])) | ~~^~~~~~~~~~~~~ main.cpp: In function 'bool hashigherprecedence(char, char)': main.cpp:22:1: warning: control reaches end of non-void function [-Wreturn-type] 22 | } | ^ main.cpp: In function 'int operatie(char, int, int)': main.cpp:39:1: warning: control reaches end of non-void function [-Wreturn-type] 39 | } | ^