Eroare de compilare: user.cpp: In function ‘int main()’: user.cpp:32:29: error: invalid conversion from ‘const char*’ to ‘int’ [-fpermissive] memset(arr,"-2",sizeof(arr)); ^ In file included from /usr/include/features.h:367:0, from /usr/include/stdio.h:27, from user.cpp:1: /usr/include/bits/string3.h:78:1: note: initializing argument 2 of ‘void* memset(void*, int, size_t)’ __NTH (memset (void *__dest, int __ch, size_t __len)) ^ user.cpp:30:35: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen("energii.in", "r", stdin); ^ user.cpp:31:37: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen("energii.out", "w", stdout); ^ user.cpp:34:32: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%i", &numarGeneratoare); ^ user.cpp:35:29: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%i", &costRepornire); ^ user.cpp:37:24: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%i", &cost[i]); ^ user.cpp:38:25: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%i", &value[i]); ^