Compilare: user.cpp: In function ‘int main()’: user.cpp:99:9: warning: unused variable ‘rez1’ [-Wunused-variable] int rez1, rez2; ^ user.cpp:72:33: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen("ai.in", "r", stdin); ^ user.cpp:73:35: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen("ai.out", "w", stdout); ^ user.cpp:75:111: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%d\n%d %d %d %d %d %d %d %d %d %d\n%d\n", &n, &t1, &t2, &s1, &s2, &s3, &s4, &r1, &r2, &r3, &r4, &m); ^ user.cpp:79:33: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%d %d\n", &x, &y); ^ user.cpp:100:23: warning: ‘rez2’ is used uninitialized in this function [-Wuninitialized] printf("%d", rez2); ^