Compilare: main.cpp: In function 'int main()': main.cpp:37:47: warning: array subscript -1 is below array bounds of 'int [20]' [-Warray-bounds] 37 | total += max(A[st][k-1],A[dr-(1<<(k-1))+1][k-1]); | ~~~~~~~~~~~~~~~~~~~~~~^ main.cpp:37:23: warning: array subscript -1 is below array bounds of 'int [20]' [-Warray-bounds] 37 | total += max(A[st][k-1],A[dr-(1<<(k-1))+1][k-1]); | ~~~~~~~~~^ main.cpp:37:23: warning: array subscript -1 is below array bounds of 'int [20]' [-Warray-bounds] main.cpp:37:47: warning: array subscript -1 is below array bounds of 'int [20]' [-Warray-bounds] 37 | total += max(A[st][k-1],A[dr-(1<<(k-1))+1][k-1]); | ~~~~~~~~~~~~~~~~~~~~~~^