Compilare: main.cpp: In function 'int main()': main.cpp:71:18: warning: iteration 11 invokes undefined behavior [-Waggressive-loop-optimizations] 71 | prefix_zile[i] = prefix_zile[i - 1] + zile[i]; | ~~~~~~~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ main.cpp:70:19: note: within this loop 70 | for(int i = 1; i <= LUNI; i++) { | ~~^~~~~~~ main.cpp:95:58: warning: array subscript -1 is below array bounds of 'long long int [86401]' [-Warray-bounds] 95 | fout << prefix_sum[TMAX - 1] - prefix_sum[secunde1 - 1] + prefix_sum[secunde2] + zile * prefix_sum[TMAX - 1] << '\n'; | ~~~~~~~~~~~~~~~~~~~~~~~^ main.cpp:34:5: note: while referencing 'prefix_sum' 34 | int prefix_sum[TMAX + 1]; | ^~~~~~~~~~