Compilare: user.cpp: In function ‘void init()’: user.cpp:29:22: warning: suggest parentheses around assignment used as truth value [-Wparentheses] viz[i][j]=d[i][j]=0; ^ user.cpp: In function ‘int main()’: user.cpp:105:33: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen("ai.in", "r", stdin); ^ user.cpp:106:35: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen("ai.out", "w", stdout); ^ user.cpp:108:20: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%d", &n); ^ user.cpp:109:84: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%d%d%d%d%d%d", &tg.x, &tg.y, &sursa1.x, &sursa1.y, &sursa2.x, &sursa2.y); ^ user.cpp:110:58: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%d%d%d%d", &rob1.x, &rob1.y, &rob2.x, &rob2.y); ^ user.cpp:111:20: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%d", &k); ^ user.cpp:113:49: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%d%d", &lin, &col), v[lin][col]=1; ^