Borderou de evaluare (job #683668)

Compilare: main.cpp: In function 'int main()': main.cpp:25:12: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)' declared with attribute 'warn_unused_result' [-Wunused-result] 25 | freopen("drenaj.in", "r", stdin); | ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~ main.cpp:26:12: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)' declared with attribute 'warn_unused_result' [-Wunused-result] 26 | freopen("drenaj.out", "w", stdout); | ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~ main.cpp:30:10: warning: ignoring return value of 'int scanf(const char*, ...)' declared with attribute 'warn_unused_result' [-Wunused-result] 30 | scanf("%d%d",&N,&M); | ~~~~~^~~~~~~~~~~~~~ main.cpp:32:34: warning: ignoring return value of 'int scanf(const char*, ...)' declared with attribute 'warn_unused_result' [-Wunused-result] 32 | for(j=1; j<=M; j++) scanf("%d",&A[i][j]); | ~~~~~^~~~~~~~~~~~~~~