Compilare: user.cpp: In function ‘int main()’: user.cpp:68:11: warning: suggest explicit braces to avoid ambiguous ‘else’ [-Wparentheses] if (c[i-1][j]==c[i+1][j]) ^ user.cpp:88:11: warning: suggest explicit braces to avoid ambiguous ‘else’ [-Wparentheses] if (c[i-1][j]==c[i][j-1]) ^ user.cpp:108:11: warning: suggest explicit braces to avoid ambiguous ‘else’ [-Wparentheses] if (c[i-1][j]==c[i][j+1]) ^ user.cpp:130:11: warning: suggest explicit braces to avoid ambiguous ‘else’ [-Wparentheses] if (c[i][j-1]==c[i+1][j]) ^ user.cpp:150:11: warning: suggest explicit braces to avoid ambiguous ‘else’ [-Wparentheses] if (c[i][j-1]==c[i][j+1]) ^ user.cpp:172:11: warning: suggest explicit braces to avoid ambiguous ‘else’ [-Wparentheses] if (c[i+1][j]==c[i][j+1]) ^ user.cpp:29:20: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] fscanf(f,"%i",&v); ^ user.cpp:30:25: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] fscanf(f,"%i%i",&m,&n); ^ user.cpp:38:28: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] fscanf(f,"%c",&c[i][j]); ^ user.cpp:40:28: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] fscanf(f,"%c",&c[i][j]); ^ user.cpp:57:9: warning: array subscript is below array bounds [-Warray-bounds] r[-1]=-50; ^