Borderou de evaluare (job #735472)

Compilare: main.cpp: In function 'int main()': main.cpp:22:12: warning: comparison of integer expressions of different signedness: 'int' and 'size_t' {aka 'unsigned int'} [-Wsign-compare] 22 | while(i<strlen(a)&&j>=0) | ~^~~~~~~~~~ main.cpp:32:9: warning: comparison of integer expressions of different signedness: 'int' and 'size_t' {aka 'unsigned int'} [-Wsign-compare] 32 | if(i<strlen(a)) | ~^~~~~~~~~~ main.cpp:33:16: warning: comparison of integer expressions of different signedness: 'int' and 'size_t' {aka 'unsigned int'} [-Wsign-compare] 33 | while(i<strlen(a)) | ~^~~~~~~~~~ main.cpp:46:10: warning: converting to non-pointer type 'char' from NULL [-Wconversion-null] 46 | c[k]=NULL; | ^~~~ main.cpp:11:11: warning: unused variable 'inv' [-Wunused-variable] 11 | int k,inv,i; | ^~~ main.cpp:16:9: warning: unused variable 'ca' [-Wunused-variable] 16 | int ca=0; | ^~