Borderou de evaluare (job #709890)

Compilare: main.cpp: In function 'void read(int&)': main.cpp:28:18: warning: ignoring return value of 'size_t fread(void*, size_t, size_t, FILE*)' declared with attribute 'warn_unused_result' [-Wunused-result] 28 | fread(buff, 1, buff_size, stdin); | ~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~ main.cpp:38:18: warning: ignoring return value of 'size_t fread(void*, size_t, size_t, FILE*)' declared with attribute 'warn_unused_result' [-Wunused-result] 38 | fread(buff, 1, buff_size, stdin); | ~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~ main.cpp: In function 'int main()': main.cpp:71:12: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)' declared with attribute 'warn_unused_result' [-Wunused-result] 71 | freopen("voodoo.in", "r", stdin); | ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~ main.cpp:72:12: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)' declared with attribute 'warn_unused_result' [-Wunused-result] 72 | freopen("voodoo.out", "w", stdout); | ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~ main.cpp:77:10: warning: ignoring return value of 'int scanf(const char*, ...)' declared with attribute 'warn_unused_result' [-Wunused-result] 77 | scanf("%d%d%d", &n, &x, &y); | ~~~~~^~~~~~~~~~~~~~~~~~~~~~ main.cpp:92:14: warning: ignoring return value of 'int scanf(const char*, ...)' declared with attribute 'warn_unused_result' [-Wunused-result] 92 | scanf("%d", &a); | ~~~~~^~~~~~~~~~