Compilare: main.cpp: In function 'int main()': main.cpp:12:12: warning: unused variable 'x' [-Wunused-variable] 12 | int n, x, y, i, xmax=0, j, nr, nrmax, sx=0, sy=0; | ^ main.cpp:12:15: warning: unused variable 'y' [-Wunused-variable] 12 | int n, x, y, i, xmax=0, j, nr, nrmax, sx=0, sy=0; | ^ main.cpp:12:29: warning: unused variable 'j' [-Wunused-variable] 12 | int n, x, y, i, xmax=0, j, nr, nrmax, sx=0, sy=0; | ^ main.cpp:12:32: warning: unused variable 'nr' [-Wunused-variable] 12 | int n, x, y, i, xmax=0, j, nr, nrmax, sx=0, sy=0; | ^~ main.cpp:28:26: warning: array subscript 2 is above array bounds of 'int [2]' [-Warray-bounds] 28 | sy=sy+ma[i][2]; | ~~~~~~~^ main.cpp:8:5: note: while referencing 'ma' 8 | int ma[300001][2]; | ^~