Compilare: user.cpp: In function ‘int main()’: user.cpp:66:74: warning: statement has no effect [-Wunused-value] else if(v[xx][yy].x==5 && s<v[xx][yy].y) {v[xx][yy].x==0;v2[x][y].x=1;v2[xx][yy].x=2;x=xx;y=yy;a++;v1[v[xx][yy].y]--;v2[x][y].y=d;} ^ user.cpp:104:74: warning: statement has no effect [-Wunused-value] else if(v[xx][yy].x==5 && s>=v[xx][yy].y) {v2[x][y].x=1;v2[xx][yy].x=2;x=xx;y=yy;v2[x1][y1].x=0;x1=xx1;y1=yy1;v2[x][y].y=d;} ^ user.cpp:15:37: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen("culegere.in","r",stdin); ^ user.cpp:16:39: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen("culegere.out","w",stdout); ^ user.cpp:18:34: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%d%d%d%d",&n,&m,&k,&e); ^ user.cpp:30:30: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%d",&v3[i][0]); ^ user.cpp:31:83: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] if(v3[i][0]==1) {scanf("%d%d%d%d",&v3[i][1],&v3[i][2],&v3[i][3],&v3[i][4]);} ^ user.cpp:32:83: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] else scanf("%d%d%d%d%d",&v3[i][1],&v3[i][2],&v3[i][3],&v3[i][4],&v3[i][5]); ^