Compilare: main.cpp: In function 'int main()': main.cpp:9:18: warning: unused variable 'ti' [-Wunused-variable] int profit,i,ti,pret,n,c,l,pm=0; ^~ main.cpp:7:36: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)', declared with attribute warn_unused_result [-Wunused-result] freopen("carnati.in","r",stdin); ^ 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("carnati.out","w",stdout); ^ main.cpp:10:24: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result] scanf("%d%d",&n,&c); ^ main.cpp:12:34: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result] scanf("%d%d",&t[i],&p[i]); ^