Compilare: user.cpp: In function ‘void solve()’: user.cpp:147:26: warning: suggest parentheses around ‘&&’ within ‘||’ [-Wparentheses] while(i <= n && ch[i].r < sf[j].r || (ch[i].r == sf[j].r && ch[i].x < sf[j].x)) ^ user.cpp: In function ‘void readFile()’: user.cpp:178:24: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] fscanf(f, "%d", &t); ^ user.cpp:183:40: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] fscanf(f, "%d%d%d", &n, &m, &k); ^ user.cpp:188:50: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] fscanf(f, "%d%d", &ch[i].r, &ch[i].x); ^ user.cpp:191:50: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] fscanf(f, "%d%d", &sf[i].r, &sf[i].x); ^