Compilare: main.cpp: In function 'void flip(int (*)[20], int, int)': main.cpp:37:6: warning: suggest explicit braces to avoid ambiguous 'else' [-Wparentheses] if (abs(sumneg) > sumpoz) ^ main.cpp:56:6: warning: suggest explicit braces to avoid ambiguous 'else' [-Wparentheses] if (abs(sumneg) > sumpoz) ^ main.cpp:25:6: warning: unused variable 'sum' [-Wunused-variable] int sum = 0, sumpoz = 0, sumneg = 0, maxneg = 0, maxpoz=0; ^~~ main.cpp:26:15: warning: 'ind_lin' may be used uninitialized in this function [-Wmaybe-uninitialized] int ind_col, ind_lin; ^~~~~~~ main.cpp:26:6: warning: 'ind_col' may be used uninitialized in this function [-Wmaybe-uninitialized] int ind_col, ind_lin; ^~~~~~~