Compilare: main.cpp: In function 'int main()': main.cpp:38:27: warning: suggest parentheses around '+' inside '>>' [-Wparentheses] cin >> mat[i] + 1; ~~~~~~~^~~ main.cpp:30:40: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)', declared with attribute warn_unused_result [-Wunused-result] freopen("marceland.in", "r", stdin); ^ main.cpp:31:42: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)', declared with attribute warn_unused_result [-Wunused-result] freopen("marceland.out", "w", stdout); ^