Compilare: main.cpp: In function 'int main()': main.cpp:21:15: warning: suggest explicit braces to avoid ambiguous 'else' [-Wparentheses] if(j) ^ main.cpp:14:91: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)', declared with attribute warn_unused_result [-Wunused-result] freopen("submultimi.in","r",stdin),freopen("submultimi.out","w",stdout),scanf("%d",&n); ^ main.cpp:14:91: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)', declared with attribute warn_unused_result [-Wunused-result] main.cpp:14:91: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]