Borderou de evaluare (job #707309)

Compilare: main.cpp: In function 'void read_matrix(int, int, int (*)[510])': main.cpp:10:18: warning: ignoring return value of 'int scanf(const char*, ...)' declared with attribute 'warn_unused_result' [-Wunused-result] 10 | scanf("%d", &a[i][j]); | ~~~~~^~~~~~~~~~~~~~~~ main.cpp: In function 'int main()': main.cpp:70:12: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)' declared with attribute 'warn_unused_result' [-Wunused-result] 70 | freopen("arrows.in", "r", stdin); | ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~ main.cpp:71:12: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)' declared with attribute 'warn_unused_result' [-Wunused-result] 71 | freopen("arrows.out", "w", stdout); | ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~ main.cpp:74:10: warning: ignoring return value of 'int scanf(const char*, ...)' declared with attribute 'warn_unused_result' [-Wunused-result] 74 | scanf("%d", &c); | ~~~~~^~~~~~~~~~ main.cpp:77:10: warning: ignoring return value of 'int scanf(const char*, ...)' declared with attribute 'warn_unused_result' [-Wunused-result] 77 | scanf("%d%d", &n,&m); | ~~~~~^~~~~~~~~~~~~~~ main.cpp:81:10: warning: ignoring return value of 'int scanf(const char*, ...)' declared with attribute 'warn_unused_result' [-Wunused-result] 81 | scanf("%d%d", &lin,&col); | ~~~~~^~~~~~~~~~~~~~~~~~~