Compilare: user.cpp: In function ‘void apara(int, int, int&, int&)’: user.cpp:58:22: warning: suggest parentheses around ‘&&’ within ‘||’ [-Wparentheses] if(y>=s2 && y<t2 || y<=s2 && y>t2) ^ user.cpp:63:22: warning: suggest parentheses around ‘&&’ within ‘||’ [-Wparentheses] if(x>=s1 && x<t1 || x<=s1 && x>t1) ^ user.cpp:66:22: warning: suggest parentheses around ‘&&’ within ‘||’ [-Wparentheses] else if(x>s1 && x<t1 || x<s1 && x>t1) ^ user.cpp:67:21: warning: suggest parentheses around ‘&&’ within ‘||’ [-Wparentheses] if(y>s2 && y<t2 || y<s2 && y>t2) ^ user.cpp:55:11: warning: suggest explicit braces to avoid ambiguous ‘else’ [-Wparentheses] if((x-s1)*(t2-s2)==(y-s2)*(t1-s1)) ^ user.cpp:74:22: warning: suggest parentheses around ‘&&’ within ‘||’ [-Wparentheses] if(y>=s4 && y<t2 || y<=s4 && y>t2) ^ user.cpp:79:22: warning: suggest parentheses around ‘&&’ within ‘||’ [-Wparentheses] if(x>=s3 && x<t1 || x<=s3 && x>t1) ^ user.cpp:82:22: warning: suggest parentheses around ‘&&’ within ‘||’ [-Wparentheses] else if(x>s3 && x<t1 || x<s3 && x>t1) ^ user.cpp:83:21: warning: suggest parentheses around ‘&&’ within ‘||’ [-Wparentheses] if(y>s4 && y<t2 || y<s4 && y>t2) ^ user.cpp:71:11: warning: suggest explicit braces to avoid ambiguous ‘else’ [-Wparentheses] if((x-s3)*(t2-s4)==(y-s4)*(t1-s3)) ^ user.cpp: In function ‘void ziduri()’: user.cpp:22:24: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] fscanf(fin,"%d",&k); ^ user.cpp:26:34: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] fscanf(fin,"%d %d",&x,&y); ^ user.cpp: In function ‘int main()’: user.cpp:117:24: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] fscanf(fin,"%d",&n); ^ user.cpp:118:79: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] fscanf(fin,"%d%d%d%d%d%d%d%d%d%d",&t1,&t2,&s1,&s2,&s3,&s4,&r1,&r2,&r3,&r4); ^