Compilare: main.cpp: In function 'int main()': main.cpp:11:36: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)', declared with attribute warn_unused_result [-Wunused-result] freopen("tabela.in","r", stdin); ^ main.cpp:12:38: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)', declared with attribute warn_unused_result [-Wunused-result] freopen("tabela.out","w", stdout); ^ main.cpp:42:19: warning: iteration 7 invokes undefined behavior [-Waggressive-loop-optimizations] a[i][9-i] = 7; ~~~~~~~~~~^~~ main.cpp:41:22: note: within this loop for(int i = 1; i <= 8; i++) ~~^~~~ main.cpp:40:17: warning: iteration 7 invokes undefined behavior [-Waggressive-loop-optimizations] a[i][i] = 0; ~~~~~~~~^~~ main.cpp:39:18: note: within this loop for(int i = 1; i <= 8; i++) ~~^~~~ main.cpp:44:47: warning: array subscript is above array bounds [-Warray-bounds] a[1][i] = a[i][1] = a[9 - i][8] = a[8][9 - i] = i - 1; ~~~^ main.cpp:44:40: warning: array subscript is above array bounds [-Warray-bounds] a[1][i] = a[i][1] = a[9 - i][8] = a[8][9 - i] = i - 1; ~~~~~~~~~~^