Compilare: user.cpp: In function ‘int solve(int, int, int, int, int, int)’: user.cpp:149:33: warning: unused variable ‘i’ [-Wunused-variable] int answer,res,nsel,lim=64,b,c,i,j,k,minDim=3,cnt,nextimin,nextimax,nextjmin,nextjmax,nextkmin,nextkmax,qimin,qimax,qjmin,qjmax,qkmin,qkmax,pimin,pimax,pjmin,pjmax,pkmin,pkmax; ^ user.cpp:149:35: warning: unused variable ‘j’ [-Wunused-variable] int answer,res,nsel,lim=64,b,c,i,j,k,minDim=3,cnt,nextimin,nextimax,nextjmin,nextjmax,nextkmin,nextkmax,qimin,qimax,qjmin,qjmax,qkmin,qkmax,pimin,pimax,pjmin,pjmax,pkmin,pkmax; ^ user.cpp:149:37: warning: unused variable ‘k’ [-Wunused-variable] int answer,res,nsel,lim=64,b,c,i,j,k,minDim=3,cnt,nextimin,nextimax,nextjmin,nextjmax,nextkmin,nextkmax,qimin,qimax,qjmin,qjmax,qkmin,qkmax,pimin,pimax,pjmin,pjmax,pkmin,pkmax; ^ user.cpp: In function ‘int main()’: user.cpp:198:33: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen("ppcover.in","r",stdin); ^ user.cpp:199:38: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen("ppcover.out","w",stdout); ^ user.cpp:201:23: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%d",&tests); ^ user.cpp:203:25: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%d\n",&n); ^ user.cpp:208:32: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%s",s+1); ^