Compilare: user.cpp: In function ‘void rez(int)’: user.cpp:33:52: warning: suggest parentheses around ‘&&’ within ‘||’ [-Wparentheses] if(mat[i][k] && mat[k][j]&& mat[i][j]&& mat[i][k]+mat[k][j]<mat[i][j] ||mat[i][k]&&mat[k][j]&&!mat[i][j]) ^ user.cpp: In function ‘void citire()’: user.cpp:41:21: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] fscanf(f,"%d",&t); ^ user.cpp:45:30: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] fscanf(f,"%d%d",&n,&m); ^ user.cpp:49:34: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] fscanf(f,"%d%d",&a,&b); ^ user.cpp:54:35: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] {fscanf(f,"%d",&a[i][j]); ^