Compilare: main.cpp: In function 'int main()': main.cpp:13:34: warning: right shift count >= width of type [-Wshift-count-overflow] if( !(ciur[i >> (base + 1)] & (1 << ((i >> 1) % base))) ) ^ main.cpp:17:40: warning: right shift count >= width of type [-Wshift-count-overflow] ciur[j >> (base + 1)] |= (1 << ((j >> 1) % base)); ^ main.cpp:8:35: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)', declared with attribute warn_unused_result [-Wunused-result] freopen("ciur.in", "r", stdin); ^ main.cpp:9:37: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)', declared with attribute warn_unused_result [-Wunused-result] freopen("ciur.out", "w", stdout); ^ main.cpp:11:20: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result] scanf("%d", &n); ^ main.cpp:20:11: warning: 'nr' may be used uninitialized in this function [-Wmaybe-uninitialized] printf("%d\n", nr + 1); ~~~~~~^~~~~~~~~~~~~~~~