Compilare: main.cpp: In function 'int evaluare()': main.cpp:34:6: warning: unused variable 'a' [-Wunused-variable] int a, b; ^ main.cpp:34:9: warning: unused variable 'b' [-Wunused-variable] int a, b; ^ main.cpp: In function 'int main()': main.cpp:67:36: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)', declared with attribute warn_unused_result [-Wunused-result] freopen("multimi4.in", "r", stdin); ^ main.cpp:68:38: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)', declared with attribute warn_unused_result [-Wunused-result] freopen("multimi4.out", "w", stdout); ^ main.cpp:69:19: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result] scanf("%d\n", &n); ^ main.cpp:71:63: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result] scanf("%c=%d-%d/%d\n", &E[i].c, &E[i].st, &E[i].dr, &E[i].r); ^ main.cpp:79:20: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result] scanf("%s", Exp+2); ^