Eroare de compilare: user.cpp:7:18: error: size of array ‘a’ is too large char s[N], a[N][N]; ^ user.cpp: In function ‘int main()’: user.cpp:16:27: error: ‘strlen’ was not declared in this scope for(int i=0;i<strlen(s);i++) ^ user.cpp:12:40: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen("compresie.in", "r", stdin); ^ user.cpp:13:42: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen("compresie.out", "w", stdout); ^ user.cpp:15:19: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%s", s); ^