Borderou de evaluare (job #707192)

Compilare: main.cpp: In function 'void read_matrix(int, int, int (*)[510])': main.cpp:8:18: warning: ignoring return value of 'int scanf(const char*, ...)' declared with attribute 'warn_unused_result' [-Wunused-result] 8 | scanf("%d", &a[i][j]); | ~~~~~^~~~~~~~~~~~~~~~ main.cpp: In function 'int main()': main.cpp:54:12: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)' declared with attribute 'warn_unused_result' [-Wunused-result] 54 | freopen("arrows.in", "r", stdin); | ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~ main.cpp:55:12: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)' declared with attribute 'warn_unused_result' [-Wunused-result] 55 | freopen("arrows.out", "w", stdout); | ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~ main.cpp:58:10: warning: ignoring return value of 'int scanf(const char*, ...)' declared with attribute 'warn_unused_result' [-Wunused-result] 58 | scanf("%d", &c); | ~~~~~^~~~~~~~~~ main.cpp:61:10: warning: ignoring return value of 'int scanf(const char*, ...)' declared with attribute 'warn_unused_result' [-Wunused-result] 61 | scanf("%d%d", &n,&m); | ~~~~~^~~~~~~~~~~~~~~ main.cpp:65:10: warning: ignoring return value of 'int scanf(const char*, ...)' declared with attribute 'warn_unused_result' [-Wunused-result] 65 | scanf("%d%d", &lin,&col); | ~~~~~^~~~~~~~~~~~~~~~~~~