Compilare: user.cpp: In function ‘int query(int, int, int, int)’: user.cpp:61:14: warning: unused variable ‘i’ [-Wunused-variable] int aux, i, ans = 0, b1, b2, dr1, dr2, lastpoz2, j, num = 0, lastpoz1; ^ user.cpp:61:34: warning: unused variable ‘dr1’ [-Wunused-variable] int aux, i, ans = 0, b1, b2, dr1, dr2, lastpoz2, j, num = 0, lastpoz1; ^ user.cpp:61:39: warning: unused variable ‘dr2’ [-Wunused-variable] int aux, i, ans = 0, b1, b2, dr1, dr2, lastpoz2, j, num = 0, lastpoz1; ^ user.cpp:61:44: warning: unused variable ‘lastpoz2’ [-Wunused-variable] int aux, i, ans = 0, b1, b2, dr1, dr2, lastpoz2, j, num = 0, lastpoz1; ^ user.cpp:61:54: warning: unused variable ‘j’ [-Wunused-variable] int aux, i, ans = 0, b1, b2, dr1, dr2, lastpoz2, j, num = 0, lastpoz1; ^ user.cpp:61:66: warning: unused variable ‘lastpoz1’ [-Wunused-variable] int aux, i, ans = 0, b1, b2, dr1, dr2, lastpoz2, j, num = 0, lastpoz1; ^ user.cpp: In function ‘int main()’: user.cpp:122:39: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen ("afaceri.in", "r", stdin); ^ user.cpp:123:41: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen ("afaceri.out", "w", stdout); ^ user.cpp:125:66: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf ("%d%d%d%d%d%d%d%d", &N, &M, &Q, &L, &A0, &A1, &A2, &R); ^ user.cpp:126:22: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf ("%d", &LX); ^ user.cpp:128:29: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf ("%d", &X [i]); ^ user.cpp:129:22: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf ("%d", &LY); ^ user.cpp:131:29: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf ("%d", &Y [i]); ^ user.cpp:132:22: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf ("\n%s", s); ^