Compilare: main.cpp: In function 'int main()': main.cpp:17:40: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)', declared with attribute warn_unused_result [-Wunused-result] freopen ("gheizere.in", "r", stdin); ^ main.cpp:18:42: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)', declared with attribute warn_unused_result [-Wunused-result] freopen ("gheizere.out", "w", stdout); ^ main.cpp:22:45: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result] scanf ("%d%d%d%d%d", &n, &m, &p, &v, &e); ^ main.cpp:24:64: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result] scanf ("%d%d%d%d%d", &x[i], &y[i], &r[i], &t[i], &d[i]); ^