Compilare: user.cpp: In function ‘int main()’: user.cpp:28:31: warning: suggest parentheses around ‘-’ in operand of ‘&’ [-Wparentheses] mat[i&1][j]=mat[1-i&1][j]; ^ user.cpp:30:35: warning: suggest parentheses around ‘-’ in operand of ‘&’ [-Wparentheses] mat[i&1][j]=min(mat[1-i&1][j],mat[1-i&1][j-E[i]]+C[i]); ^ user.cpp:30:49: warning: suggest parentheses around ‘-’ in operand of ‘&’ [-Wparentheses] mat[i&1][j]=min(mat[1-i&1][j],mat[1-i&1][j-E[i]]+C[i]); ^ user.cpp:32:22: warning: suggest parentheses around ‘-’ in operand of ‘&’ [-Wparentheses] while(W<=s&&mat[1-G&1][W]==INF) ^ user.cpp:37:31: warning: suggest parentheses around ‘-’ in operand of ‘&’ [-Wparentheses] fprintf(fout,"%d" ,mat[1-G&1][W]); ^ user.cpp:12:13: warning: unused variable ‘n’ [-Wunused-variable] int i,j,n,G,W,s=0; ^ user.cpp:15:29: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] fscanf(fi,"%d%d" ,&G,&W); ^ user.cpp:17:38: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] fscanf(fi,"%d%d" ,&E[i],&C[i]); ^