Compilare: user.cpp: In function ‘int main()’: user.cpp:36:7: warning: suggest explicit braces to avoid ambiguous ‘else’ [-Wparentheses] if(cntp%2==1) ^ user.cpp:15:48: warning: variable ‘beg’ set but not used [-Wunused-but-set-variable] int i,cntp=0,bestSum = -20000000, sum = 0, beg, end, idx,mn=200000000; ^ user.cpp:15:53: warning: variable ‘end’ set but not used [-Wunused-but-set-variable] int i,cntp=0,bestSum = -20000000, sum = 0, beg, end, idx,mn=200000000; ^ user.cpp:12:37: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen("valentin.in","r",stdin); ^ user.cpp:13:39: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen("valentin.out","w",stdout); ^ user.cpp:14:24: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%d%d",&t,&n); ^ user.cpp:18:26: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%d",&v[i]); ^