Compilare: main.cpp: In function 'int main()': main.cpp:8:38: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)', declared with attribute warn_unused_result [-Wunused-result] freopen("lautari.in", "r", stdin); ^ main.cpp:9:40: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)', declared with attribute warn_unused_result [-Wunused-result] freopen("lautari.out", "w", stdout); ^ main.cpp:11:34: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result] scanf("%d %d %d", &n, &p, &q); ++q; ^ main.cpp:14:24: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result] scanf("%d", &t); ^ main.cpp:37:24: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result] scanf("%d", &t); ^ main.cpp:73:24: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result] scanf("%d", &t); d[poz] = 1; ^ main.cpp:69:13: warning: 'ans' may be used uninitialized in this function [-Wmaybe-uninitialized] ans -= x; ~~~~^~~~ main.cpp:88:19: warning: 'y' may be used uninitialized in this function [-Wmaybe-uninitialized] y = y + 1; ~~^~~~~~~