Compilare: main.cpp:17:5: warning: built-in function 'exp' declared as non-function [-Wbuiltin-declaration-mismatch] 17 | int exp[nmax]; | ^~~ main.cpp: In function 'int main()': main.cpp:125:19: warning: comparison of integer expressions of different signedness: 'int' and 'size_t' {aka 'long unsigned int'} [-Wsign-compare] 125 | for(j=0; j<strlen(c); j++) | ~^~~~~~~~~~ main.cpp:144:19: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 144 | for(j=0; j<cuv.size(); j++) | ~^~~~~~~~~~~ main.cpp:145:25: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 145 | for(k=j+1; k<cuv.size(); k++) | ~^~~~~~~~~~~