Compilare: main.cpp: In function 'int main()': main.cpp:23:90: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)', declared with attribute warn_unused_result [-Wunused-result] freopen("sdo.in","r",stdin),freopen("sdo.out","w",stdout),scanf("%d%d%d",&n,&k,&a[1]); ^ main.cpp:23:90: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)', declared with attribute warn_unused_result [-Wunused-result] main.cpp:23:90: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result] main.cpp:25:44: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result] scanf("%d",a+i),a[i-1]<a[i]?j++:t++; ^