Compilare: user.cpp: In function ‘void Prim()’: user.cpp:70:13: warning: unused variable ‘cost’ [-Wunused-variable] int cost = Q.top().first; ^ user.cpp:61:9: warning: unused variable ‘coridoare’ [-Wunused-variable] int coridoare = 0; ^ user.cpp: In function ‘void Read()’: user.cpp:169:39: warning: format ‘%s’ expects argument of type ‘char*’, but argument 4 has type ‘char (*)[5]’ [-Wformat=] scanf("%d %d %s\n", &x, &y, &s); ^ user.cpp: In function ‘int Kes(char)’: user.cpp:147:1: warning: control reaches end of non-void function [-Wreturn-type] } ^ user.cpp: In function ‘void Read()’: user.cpp:163:23: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%d", &test); ^ user.cpp:164:27: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%d %d", &N, &M); ^ user.cpp:169:40: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%d %d %s\n", &x, &y, &s); ^ user.cpp: In function ‘int main()’: user.cpp:207:38: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen("ninjago.in", "r", stdin); ^ user.cpp:208:40: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen("ninjago.out", "w", stdout); ^