Compilare: user.cpp: In function ‘void citire(int)’: user.cpp:9:16: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(i=1;i<=n;i++) ^ user.cpp:11:25: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] else for(j=1;j<=n;j++){mat[i][j]=nr;nr++;} ^ user.cpp: In function ‘void citire2(int, int, int)’: user.cpp:58:16: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(i=1;i<=n;i++) ^ user.cpp:59:142: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] if(i%2==0){for(j=n;j>0;j--){ams[i][j]=v[a];a++;if(mat[i][j]==ams[i][j]){if(kappa[i][j]==0){kappa[i][j]=m+1;ka[kappa[i][j]]++;g--;if(ma<m+1){ma=m+1;} }}} } ^ user.cpp:60:26: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] else {for(j=1;j<=n;j++){ams[i][j]=v[a];a++;if(mat[i][j]==ams[i][j]){if(kappa[i][j]==0){kappa[i][j]=m+1;ka[kappa[i][j]]++;g--;if(ma<m+1)ma=m+1;}}} } ^ user.cpp:60:142: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] else {for(j=1;j<=n;j++){ams[i][j]=v[a];a++;if(mat[i][j]==ams[i][j]){if(kappa[i][j]==0){kappa[i][j]=m+1;ka[kappa[i][j]]++;g--;if(ma<m+1)ma=m+1;}}} } ^ user.cpp:57:23: warning: unused variable ‘k1’ [-Wunused-variable] {int unsigned i,j,a=0,k1=0,t=1,s; ^ user.cpp:57:28: warning: unused variable ‘t’ [-Wunused-variable] {int unsigned i,j,a=0,k1=0,t=1,s; ^ user.cpp:57:32: warning: unused variable ‘s’ [-Wunused-variable] {int unsigned i,j,a=0,k1=0,t=1,s; ^ user.cpp: In function ‘int main()’: user.cpp:81:12: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(i=1;i<=ma;i++) ^ user.cpp:86:24: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] { s=0; for(i=1;i<=ma;i++) ^ user.cpp:66:19: warning: unused variable ‘j1’ [-Wunused-variable] { int n,i=1,j=0,k,j1,i1,a=1,s; ^ user.cpp:66:22: warning: unused variable ‘i1’ [-Wunused-variable] { int n,i=1,j=0,k,j1,i1,a=1,s; ^